Crash report: Error: Polling is not active.

[tessel-crashbot]

Error: Polling is not active.
    at InEndpoint.Endpoint.stopPoll (t2-cli\node_modules\usb\usb.js:398:9)
    at Promise (t2-cli\lib\usb-connection.js:274:17)
    at new Promise (<anonymous>)
    at USB.Connection.enterBootloader (t2-cli\lib\usb-connection.js:273:10)
    at Promise (t2-cli\lib\tessel\update.js:136:16)
    at new Promise (<anonymous>)
    at Tessel.updateFirmware (t2-cli\lib\tessel\update.js:126:10)
    at Promise (t2-cli\lib\tessel\update.js:39:23)
    at new Promise (<anonymous>)
    at Promise.then (t2-cli\lib\tessel\update.js:37:14)

Full report is at 0x387473fc78cc83a2