Prefab won't keep children Box Colliders

I have a prefab that has a number of children (around 10 or so) that are Rigidbodies with box colliders.

For some reason, after a few open/closes of my editor about 1/2 of the box colliders on the children will vanish. I readd them, test it a few times, it works fine. But then a few iterations later they are gone again… it’s killing me. I’ve rebuilt the object completely from scratch as well just in case it was something weird with that object.

I’m not sure what to try…

Any help is appreciated.

i dont know if this might help, but try double clicking, i heard from somewhere that it saves the prefab as is and will not change unless told too.

give it a shot, it might work, it might not

good luck though

Pretty sure I found it. Toolkit 2D was deleting colliders if you didn’t specify you wanted one in the tool.

Still like Tk2D… but that’s a bit annoying.