[HS2] [NC] Dynamic Bone flag doesn't work with modified character bones via ABMX

[AmaNo04]

At first I'm trying to make belly jiggle physics by using another items that has dynamic bones.
I parented the item's bone to chara spine01_s and kosi01_s bone. Then I found that only kosi01_s bone that moves as it should.
Happened on version 1.3.3.

Tried to replicate it on same version but with bare minimum scene : single basic chara and 2 folders to move both bones manually. Both works as they should.
Proceeded to remake the whole scene using another chara (with all of the bone modifications), only the kosi01_s worked.
Tried few things and found that the bone modifications in ABMX was the cause. My chara's spine01_s has Y : 0.200 offset. When I removed the offset, it worked.

Here is the demo I did to replicate the issue after finding the cause.
Recorded it on version 1.3.2 bcs I wanted to check whether the issue will happen or not in previous version.

[ManlyMarco]

Did this work as you expect on any previous version of NC/ABMX? When you set the offset in ABMX the bone position is frozen by necessity since if you just kept adding the offset the bone would keep moving in the offset's direction every frame.

[AmaNo04]

Actually I never used the Dynamic toggle in NC before, as I didn't know what it does before. Also belly physics never really mattered to me before tbh.
When I found pull #53, gave it a read and tried the workaround from ShaltyB, it worked just fine even with ABMX offset.
After did some digging about Dynamic toggle in the pull #55, I tried it and found this issue.