So when I publish my Roblox avatar into vrchat it doesn’t even move or animate. When I checked the avatar performance I found out there’s 0/22 bones even though I had the bones on there like the Chest, Neck, Head, Spine, Etc. I tried this about on 5 different Roblox models and I get the same results. Also I exported from CATS blender plugin. so I don’t know if it was because of the plugin or the bones I put on there. Hope somebody knows how to fix this problem.
Sounds like you need to click the FBX and go to the armature section to set it to Humanoid and assign the bones. This old tutorial should still be relevant for that section at least: