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.

When exporting, select the prop point empty first and then the parent object while holding Ctrl