I hope I can explain this in detail that hopefully isn't going to be easily misconstrued.

There's a bug with the addon, particularly the list which you can pick from for bone manipulation.

This is tested with what I presume is the latest version of the addon, is not map-specific, not addon-specific.

I would also like to point out the only other things I have installed are model packs (particularly containining ragdolls), maps, and SOME misc addons. Said misc addons are tools/scripts that effect the playermodel for multiplayer purposes I had once upon a time. Point is, there shouldn't be any conflicts to my knowledge occurring that would make this problem apparent.

The actual problem goes as follows:
When I use this addon to manipulate bones on a ragdoll, the list of bone names doesn't display if the 'Manual Bone Picking' is ticked, I only get 'BoneID' and an ability to scroll through the numbers.

What gets weirder is I have to turn MBP off, then I have to hit another ragdoll with MBP off, then I have to hit the original ragdoll again, and then after hitting it, turn MBP back on because it won't transition bones properly if it's not picked, in order for the list of bone names to appear below the BoneID.

Something is stifling the display of the bone names in the list below the BoneID when originally hitting a ragdoll with Manual Bone Picking turned on. The workaround I described above doesn't feel intentional and as such I wanted to point it out.