Bones bad position

[finite verge]

Are the wheels bones connected into the main bone? @shell wren source has really bad time while deciding the parent of bones

And definitely won't work in prop models

[shell wren]

Yes as you can see there is the little dot from the wheel to the main bones, I suppose it come from the animation ?

The sequence I mean

Does the main bone has to have a specifiq name like "body" or it just have to have the same name as the main vertex group like I do

In blender I can move the bone independently and the wheel move correctly without moving any other part

I also have this warning but I know it's because the model have some part that are too thin, can it affect the final bones placement ?