Crash: World mesh not loaded

[GigaGrunch]

Anything that loads a world crashes for me, because actualMesh.isLoaded() is false in the importWorldMesh call. The crash comes from if (!actualMesh->getCashedData()) through the getter of the ResourceHandle.

[GigaGrunch]

With #106, we at least get an error message about the mesh, but I still don't know what the problem is.

[ataulien]

I've seen this happening before, but I haven't been able to figure out why, either...