I tried to create myself custom R15 bundle but when i export to fbx then import to roblox, it work very weird.
I have read export requirement for fbx file and have double check many times to made sure i did not do it wrong.
This is my setting for fbx export from blender:
And this is my import setting with the 3D Importer:
I even downloaded the classic blocky from resource documention.
When i upload to roblox and use avatar setup. It work normally.
But when i import to blender, export it as fbx file then import it to roblox. It work very weird.
I have no idea how can i solve this.