Vertex Groups missing after importing

[tyrenica]

I'm encountering this issue where vertex groups are missing when importing rigged models from ZBrush into Blender. This problem seems to be limited to GoB add-on versions 4.2.0 down to 4.1.8. while version 4.1.7 allows me to seamlessly export and import character poses, retaining all vertex group data. I currently using Blender 4.5

[tyrenica]

for clarity : https://youtu.be/RrTnFTFzS_0