There is already a point that is a child of the armature (the source object) called prop-weapon_R. Just in case I made a new empty and parented it to the right hand, yet still no  luck...   The strange part is that the backpack works, but not the carrying basket. When the unit gathers a resource, the axe/pickaxe/whatever does not work but the whicker basket on their back does. Also, it does not show them carrying anything to their side but their arms are clearly doing so...

It is prop-weapon_R. I am using the 0 AD armature so it is all there already

Is the child of the bone named “prop-weapon_R” or just “weapon_R”? I occasionally get this error, usually because I misspelled the name of the prop point.

Thanks! I will. Right now I'm noticing that formations got much worse in r28. They were already very buggy before, so these new bugs will really be frustrating. I'll try help on this first as it might still be time for bug fixs for r28.

It isn't witchcraft. You've done much already (creating the fork, clone, branch, and finally the PR) and I'm confident you'll figure out the rest too as we move along. Then I suggest that you create the PR.