Weird behaviour when loading meshes

I turned the debugger on, and I know that the entity exists.
Blitz always gives a memory access violation on the *second* mesh load.

loadMesh(this)
loadAnimMesh(that) <-- blitz gives an error here

or:

loadAnimMesh(that)
loadMesh(this) <-- blitz gives an error here

When I just load one of the two, they load fine.