Please do update the engine, that at least should get us on the same page 
Okay
by user 224464722878005248
I make a save to be sure and I will update just in case
by user 224464722878005248
Using version control would be the best
So, let’s make sure, that mesh that we supply to the collider is valid
you can do that by console.log(mesh) which should log the object that looks like this:
i wonder if in your case we get the same object, the model of the single tooth you sand, the code finds a mesh object called default
I’m updating and I’ll do it
by user 224464722878005248
So, you have another object.
I rename it in my code, but it’s the same type of object
by user 224464722878005248
Because it’s an example from a server, I don’t have the exact same objet on my computer
I load it
by user 224464722878005248
by user 224464722878005248
Here, that the object that I load (one of them, because I load 26 teeth like this)
by user 224464722878005248
Ok I got news
by user 224464722878005248
I tried to use my function loadObj to test loading my obj from a server and add it to my scene
And
add the collider
by user 224464722878005248
And it doesn’t work, so it’s because we load it
by user 224464722878005248
possibly, but as far as you can see the content, it is there and there.
Do you control the format the data are in?
Here :
by user 224464722878005248
The exact same object, one load from an url, and one load from my unity scene
by user 224464722878005248