Hi Erika,
Thank you for the quick response. However, the result is the same even after the filter is off.
I guess we can just skip guessing whats causing it. As long as the visual is showing user the Point attachment is selected but the one being dragged is actually the root bone, that is enough to be considered a bug. It doesn't matter if it is the filter causing or something else causing it. The visual and behavior inconsistency need to be fixed anyway.