[3.3] Faulty calculation of delta

[quizzmaster]

With the current master (3.3) I face a serious problem with the calculation of the deltas. Most of the time, the delta is calculated as zero although the bg values show differences:

The graph also shows many pale bg values:

I can provide more informations or logs if needed

[olorinmaia]

I use G7 with xDrip direct connection 3.3 master and Fake data source 3.3 dev and I don't experience this.

Can you provide more info.
Sensor type, setup in regards to getting bg to AAPS, logs from AAPS?

[quizzmaster]

I use the Libre 3 via Juggluco -> xDrip (Nightscout Follow) -> AAPS.

Here is an excerpt from the log (cut at the invokation of onReceive of the Data Receiver):

12:57:56.184 [main] D/CORE: [DataReceiver.onReceive():38]: onReceive com.eveningoutpost.dexdrip.BgEstimate Bundle{ com.eveningoutpost.dexdrip.Extras.NoiseBlockLevel => 200; com.eveningoutpost.dexdrip.Extras.BgSlope => 3.3557046979865773E-6; com.eveningoutpost.dexdrip.Extras.VersionInfo => 2124123110 8ed51e7-2024.12.31; com.eveningoutpost.dexdrip.Extras.Raw => 0.0; com.eveningoutpost.dexdrip.Extras.Display.Units => mg/dl; com.eveningoutpost.dexdrip.Extras.Time => 1735905473000; com.eveningoutpost.dexdrip.Extras.CalibrationInfo => -1; com.eveningoutpost.dexdrip.Extras.NsNoiseLevel => 1; com.eveningoutpost.dexdrip.Extras.SensorStartedAt => 1735856133660; com.eveningoutpost.dexdrip.Extras.Noise => 2.282510757446289; com.eveningoutpost.dexdrip.Extras.SensorBattery => -1; com.eveningoutpost.dexdrip.Extras.NoiseWarning => 0; com.eveningoutpost.dexdrip.Extras.BgSlopeName => Flat; com.eveningoutpost.dexdrip.Extras.BgEstimate => 110.0; com.eveningoutpost.dexdrip.Extras.SourceDesc => Nightscout; com.eveningoutpost.dexdrip.Extras.SourceInfo => Nightscout Follow; }Bundle
12:57:56.267 [DefaultDispatcher-worker-6] D/BGSOURCE: [XdripSourcePlugin$XdripSourceWorker.doWorkAndLog():106]: Received xDrip data: Bundle[{com.eveningoutpost.dexdrip.Extras.NoiseBlockLevel=200, com.eveningoutpost.dexdrip.Extras.BgSlope=3.3557046979865773E-6, com.eveningoutpost.dexdrip.Extras.VersionInfo=2124123110 8ed51e7-2024.12.31, com.eveningoutpost.dexdrip.Extras.Raw=0.0, com.eveningoutpost.dexdrip.Extras.Display.Units=mg/dl, com.eveningoutpost.dexdrip.Extras.Time=1735905473000, com.eveningoutpost.dexdrip.Extras.CalibrationInfo=-1, com.eveningoutpost.dexdrip.Extras.NsNoiseLevel=1, com.eveningoutpost.dexdrip.Extras.SensorStartedAt=1735856133660, com.eveningoutpost.dexdrip.Extras.Noise=2.282510757446289, com.eveningoutpost.dexdrip.Extras.SensorBattery=-1, com.eveningoutpost.dexdrip.Extras.NoiseWarning=0, com.eveningoutpost.dexdrip.Extras.BgSlopeName=Flat, com.eveningoutpost.dexdrip.Extras.BgEstimate=110.0, com.eveningoutpost.dexdrip.Extras.SourceDesc=Nightscout, com.eveningoutpost.dexdrip.Extras.SourceInfo=Nightscout Follow}]
12:57:56.286 [RxCachedThreadScheduler-156] D/DATABASE: [CompatDBHelper$dbChangeDisposable$2.accept():62]: Firing EventNewBG GlucoseValue(id=32222, version=0, dateCreated=1735905476272, isValid=true, referenceId=null, interfaceIDs_backing=InterfaceIDs(nightscoutSystemId=null, nightscoutId=null, pumpType=null, pumpSerial=null, temporaryId=null, pumpId=null, startId=null, endId=null), timestamp=1735905473000, utcOffset=3600000, raw=0.0, value=110.0, trendArrow=FLAT, noise=null, sourceSensor=LIBRE_3_FOLLOW)
12:57:56.289 [RxCachedThreadScheduler-156] D/DATABASE: [CompatDBHelper$dbChangeDisposable$2.accept():67]: Firing EventNewHistoryData 1735905473000 GlucoseValue(id=32222, version=0, dateCreated=1735905476272, isValid=true, referenceId=null, interfaceIDs_backing=InterfaceIDs(nightscoutSystemId=null, nightscoutId=null, pumpType=null, pumpSerial=null, temporaryId=null, pumpId=null, startId=null, endId=null), timestamp=1735905473000, utcOffset=3600000, raw=0.0, value=110.0, trendArrow=FLAT, noise=null, sourceSensor=LIBRE_3_FOLLOW)
12:57:56.292 [RxCachedThreadScheduler-156] D/DATABASE: [PersistenceLayerImpl$insertCgmSourceData$4.apply():586]: Inserted GlucoseValue from Xdrip GlucoseValue(id=32222, version=0, dateCreated=1735905476272, isValid=true, referenceId=null, interfaceIDs_backing=InterfaceIDs(nightscoutSystemId=null, nightscoutId=null, pumpType=null, pumpSerial=null, temporaryId=null, pumpId=null, startId=null, endId=null), timestamp=1735905473000, utcOffset=3600000, raw=0.0, value=110.0, trendArrow=FLAT, noise=null, sourceSensor=LIBRE_3_FOLLOW)
12:57:56.296 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.plugins.source.XdripSourcePlugin$XdripSourceWorker Data {}
12:57:56.346 [DefaultDispatcher-worker-1] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.plugins.sync.nsclientV3.workers.DataSyncWorker Data {}
12:58:01.309 [pool-10-thread-1] D/WORKER: [CalculationWorkflowImpl.stopCalculation():47]: Stopping calculation thread: onEventNewHistoryData
12:58:01.334 [pool-10-thread-1] D/WORKER: [CalculationWorkflowImpl.stopCalculation():52]: Calculation thread stopped: onEventNewHistoryData
12:58:01.342 [pool-10-thread-1] D/WORKER: [CalculationWorkflowImpl.runCalculation():64]: Starting calculation worker: EventNewBG to 03.01.25 12:58:01
12:58:01.510 [DefaultDispatcher-worker-2] D/CORE: [AutosensDataStoreObject.createBucketedDataRecalculated():239]: Adjusted time 03.01.25 12:57:53
12:58:01.544 [DefaultDispatcher-worker-2] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.LoadBgDataWorker Data {}
12:58:01.582 [DefaultDispatcher-worker-2] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareBucketedDataWorker Data {}
12:58:01.616 [DefaultDispatcher-worker-2] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareBgDataWorker Data {}
12:58:01.647 [DefaultDispatcher-worker-2] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.UpdateGraphWorker Data {}
12:58:01.731 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareTreatmentsDataWorker Data {}
12:58:02.715 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareBasalDataWorker Data {}
12:58:02.816 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareTemporaryTargetDataWorker Data {}
12:58:02.835 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.UpdateGraphWorker Data {}
12:58:03.007 [DefaultDispatcher-worker-1] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.iob.IobCobOref1Worker Data {}
12:58:03.053 [DefaultDispatcher-worker-1] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.UpdateIobCobSensWorker Data {}
12:58:03.698 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareIobAutosensGraphDataWorker Data {}
12:58:03.721 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.UpdateGraphWorker Data {}
12:58:03.735 [DefaultDispatcher-worker-5] D/APS: [LoopPlugin.invoke():239]: invoke from Calculation for InMemoryGlucoseValue(timestamp=1735905473000, value=110.0, trendArrow=FLAT, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW)
12:58:03.736 [DefaultDispatcher-worker-5] D/APS: [OpenAPSSMBPlugin.invoke():290]: invoke from Calculation for InMemoryGlucoseValue(timestamp=1735905473000, value=110.0, trendArrow=FLAT, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) tempBasalFallback: false
12:58:03.737 [DefaultDispatcher-worker-5] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735905173000, value=109.0, trendArrow=NONE, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=5 avgDelta=1.0
12:58:03.737 [DefaultDispatcher-worker-5] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735904873000, value=105.0, trendArrow=NONE, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=10 avgDelta=2.5
12:58:03.737 [DefaultDispatcher-worker-5] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735903073000, value=93.0, trendArrow=NONE, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=40 avgDelta=2.125
12:58:03.737 [DefaultDispatcher-worker-5] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735900973000, value=93.0, trendArrow=FLAT, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=75 avgDelta=1.1333333333333333
12:58:03.738 [DefaultDispatcher-worker-5] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():264]: Glucose: 110 mg/dl Noise: 0 Delta: 1 mg/dlShort avg. delta:  1,75 mg/dl Long avg. delta: 2,12 mg/dl Dura ISF minutes: 10,00 m Dura ISF average: 108,00 mg/dl Parabola minutes: 0,00 m Parabola correlation: 0,00 Parabola fit a0: 0,00 mg/dl Parabola fit a1: 0,00 mg/dl/5m Parabola fit a2: 0,00 mg/dl/(5m)^2

13:02:54.742 [main] D/CORE: [DataReceiver.onReceive():38]: onReceive com.eveningoutpost.dexdrip.BgEstimate Bundle{ com.eveningoutpost.dexdrip.Extras.NoiseBlockLevel => 200; com.eveningoutpost.dexdrip.Extras.BgSlope => 5.809128630705394E-5; com.eveningoutpost.dexdrip.Extras.VersionInfo => 2124123110 8ed51e7-2024.12.31; com.eveningoutpost.dexdrip.Extras.Raw => 0.0; com.eveningoutpost.dexdrip.Extras.Display.Units => mg/dl; com.eveningoutpost.dexdrip.Extras.Time => 1735905714000; com.eveningoutpost.dexdrip.Extras.CalibrationInfo => -1; com.eveningoutpost.dexdrip.Extras.NsNoiseLevel => 1; com.eveningoutpost.dexdrip.Extras.SensorStartedAt => 1735856133660; com.eveningoutpost.dexdrip.Extras.Noise => 5.0361328125; com.eveningoutpost.dexdrip.Extras.SensorBattery => -1; com.eveningoutpost.dexdrip.Extras.NoiseWarning => 0; com.eveningoutpost.dexdrip.Extras.BgSlopeName => SingleUp; com.eveningoutpost.dexdrip.Extras.BgEstimate => 124.0; com.eveningoutpost.dexdrip.Extras.SourceDesc => Nightscout; com.eveningoutpost.dexdrip.Extras.SourceInfo => Nightscout Follow; }Bundle
13:02:54.904 [DefaultDispatcher-worker-5] D/BGSOURCE: [XdripSourcePlugin$XdripSourceWorker.doWorkAndLog():106]: Received xDrip data: Bundle[{com.eveningoutpost.dexdrip.Extras.NoiseBlockLevel=200, com.eveningoutpost.dexdrip.Extras.BgSlope=5.809128630705394E-5, com.eveningoutpost.dexdrip.Extras.VersionInfo=2124123110 8ed51e7-2024.12.31, com.eveningoutpost.dexdrip.Extras.Raw=0.0, com.eveningoutpost.dexdrip.Extras.Display.Units=mg/dl, com.eveningoutpost.dexdrip.Extras.Time=1735905714000, com.eveningoutpost.dexdrip.Extras.CalibrationInfo=-1, com.eveningoutpost.dexdrip.Extras.NsNoiseLevel=1, com.eveningoutpost.dexdrip.Extras.SensorStartedAt=1735856133660, com.eveningoutpost.dexdrip.Extras.Noise=5.0361328125, com.eveningoutpost.dexdrip.Extras.SensorBattery=-1, com.eveningoutpost.dexdrip.Extras.NoiseWarning=0, com.eveningoutpost.dexdrip.Extras.BgSlopeName=SingleUp, com.eveningoutpost.dexdrip.Extras.BgEstimate=124.0, com.eveningoutpost.dexdrip.Extras.SourceDesc=Nightscout, com.eveningoutpost.dexdrip.Extras.SourceInfo=Nightscout Follow}]
13:02:54.988 [RxCachedThreadScheduler-162] D/DATABASE: [CompatDBHelper$dbChangeDisposable$2.accept():62]: Firing EventNewBG GlucoseValue(id=32223, version=0, dateCreated=1735905774948, isValid=true, referenceId=null, interfaceIDs_backing=InterfaceIDs(nightscoutSystemId=null, nightscoutId=null, pumpType=null, pumpSerial=null, temporaryId=null, pumpId=null, startId=null, endId=null), timestamp=1735905714000, utcOffset=3600000, raw=0.0, value=124.0, trendArrow=SINGLE_UP, noise=null, sourceSensor=LIBRE_3_FOLLOW)
13:02:54.990 [RxCachedThreadScheduler-162] D/DATABASE: [CompatDBHelper$dbChangeDisposable$2.accept():67]: Firing EventNewHistoryData 1735905714000 GlucoseValue(id=32223, version=0, dateCreated=1735905774948, isValid=true, referenceId=null, interfaceIDs_backing=InterfaceIDs(nightscoutSystemId=null, nightscoutId=null, pumpType=null, pumpSerial=null, temporaryId=null, pumpId=null, startId=null, endId=null), timestamp=1735905714000, utcOffset=3600000, raw=0.0, value=124.0, trendArrow=SINGLE_UP, noise=null, sourceSensor=LIBRE_3_FOLLOW)
13:02:54.993 [RxCachedThreadScheduler-162] D/DATABASE: [PersistenceLayerImpl$insertCgmSourceData$4.apply():586]: Inserted GlucoseValue from Xdrip GlucoseValue(id=32223, version=0, dateCreated=1735905774948, isValid=true, referenceId=null, interfaceIDs_backing=InterfaceIDs(nightscoutSystemId=null, nightscoutId=null, pumpType=null, pumpSerial=null, temporaryId=null, pumpId=null, startId=null, endId=null), timestamp=1735905714000, utcOffset=3600000, raw=0.0, value=124.0, trendArrow=SINGLE_UP, noise=null, sourceSensor=LIBRE_3_FOLLOW)
13:02:55.006 [DefaultDispatcher-worker-5] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.plugins.source.XdripSourcePlugin$XdripSourceWorker Data {}
13:02:55.143 [DefaultDispatcher-worker-2] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.plugins.sync.nsclientV3.workers.DataSyncWorker Data {}
13:03:00.030 [pool-10-thread-1] D/WORKER: [CalculationWorkflowImpl.stopCalculation():47]: Stopping calculation thread: onEventNewHistoryData
13:03:00.052 [pool-10-thread-1] D/WORKER: [CalculationWorkflowImpl.stopCalculation():52]: Calculation thread stopped: onEventNewHistoryData
13:03:00.067 [pool-10-thread-1] D/WORKER: [CalculationWorkflowImpl.runCalculation():64]: Starting calculation worker: EventNewBG to 03.01.25 13:03:00
13:03:00.312 [DefaultDispatcher-worker-5] D/CORE: [AutosensDataStoreObject.createBucketedDataRecalculated():239]: Adjusted time 03.01.25 13:01:54
13:03:00.360 [DefaultDispatcher-worker-5] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.LoadBgDataWorker Data {}
13:03:00.425 [DefaultDispatcher-worker-5] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareBucketedDataWorker Data {}
13:03:00.502 [DefaultDispatcher-worker-5] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareBgDataWorker Data {}
13:03:00.559 [DefaultDispatcher-worker-5] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.UpdateGraphWorker Data {}
13:03:00.718 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareTreatmentsDataWorker Data {}
13:03:02.545 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareBasalDataWorker Data {}
13:03:02.795 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.PrepareTemporaryTargetDataWorker Data {}
13:03:02.854 [DefaultDispatcher-worker-6] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.UpdateGraphWorker Data {}
13:03:03.493 [DefaultDispatcher-worker-2] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.iob.IobCobOref1Worker Data {}
13:03:03.537 [DefaultDispatcher-worker-2] D/WORKER: [LoggingWorker$doWork$2.invokeSuspend():27]: Worker result SUCCESS for class app.aaps.workflow.UpdateIobCobSensWorker Data {}
13:03:04.511 [RxCachedThreadScheduler-75] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735903314000, value=95.0, trendArrow=FLAT, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=40 avgDelta=3.625
13:03:04.512 [RxCachedThreadScheduler-51] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735903314000, value=95.0, trendArrow=FLAT, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=40 avgDelta=3.625
13:03:04.514 [RxCachedThreadScheduler-75] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735901214000, value=92.0, trendArrow=FLAT, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=75 avgDelta=2.1333333333333333
13:03:04.514 [RxCachedThreadScheduler-51] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():79]: InMemoryGlucoseValue(timestamp=1735901214000, value=92.0, trendArrow=FLAT, smoothed=null, filledGap=false, sourceSensor=LIBRE_3_FOLLOW) minutesAgo=75 avgDelta=2.1333333333333333
13:03:04.516 [RxCachedThreadScheduler-75] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():264]: Glucose: 124 mg/dl Noise: 0 Delta: 0 mg/dlShort avg. delta:  0,00 mg/dl Long avg. delta: 3,62 mg/dl Dura ISF minutes: 0,00 m Dura ISF average: 124,00 mg/dl Parabola minutes: 0,00 m Parabola correlation: 0,00 Parabola fit a0: 0,00 mg/dl Parabola fit a1: 0,00 mg/dl/5m Parabola fit a2: 0,00 mg/dl/(5m)^2
13:03:04.516 [RxCachedThreadScheduler-51] D/GLUCOSE: [GlucoseStatusProviderImpl.getGlucoseStatusData():264]: Glucose: 124 mg/dl Noise: 0 Delta: 0 mg/dlShort avg. delta:  0,00 mg/dl Long avg. delta: 3,62 mg/dl Dura ISF minutes: 0,00 m Dura ISF average: 124,00 mg/dl Parabola minutes: 0,00 m Parabola correlation: 0,00 Parabola fit a0: 0,00 mg/dl Parabola fit a1: 0,00 mg/dl/5m Parabola fit a2: 0,00 mg/dl/(5m)^2

[MilosKozak]

this is not easy to find from logs
if the problem can be observed in AAPS Client you can PM me NS credentials

[boris803]

I have exactly the same error, but with a slightly different setup.

FSL3 via Juggluco --> xDrip (Source: Libre patched) --> AAPS
I've also testet FSL3 via Juggluco --> AAPS --> xDrip (for alerting) with the same results.
(I've checked the setups several times, but I cannot find any misconfigurations)

Since we have another family member with diabetes, I can inform that the delta ("0") issue doesn't exist with G7 via BYODA --> xDrip --> AAPS.

Best regards
Boris

[olorinmaia]

It happend to our setup but only for a few readings. Seems like delta is not calculated when a new sensor is started with different time interval on BG arrival than previous sensor. I sent Milos screens and logs on discord.

After a few readings delta is calculated and again and hasn't occurred again during this sensor session.

Setup is G7 and direct connection via xDrip+