Loading .vtu with cell data arrays crashes on Ubuntu 14.04 with LXDE

[araex]

I got into a state where it got stuck loading .vtu. The GUI is still somewhat responsive, but the progress bars shows 0% and you can't really do much. Restarting the app did not resolve the issue. However, it only appears to be happening when i try to open only a .vtu. Opening the same .vtu together with a regular image (as in 2 files at once with multiple selection), it works for some reason?

[araex]

Tried to replicate it on another Ubuntu 14.04 installation without success. The 2 installations are mostly identical (Ubuntu 14.04, kernel 3.13.0, same lib versions). Only major difference is the used desktop environment. It crashes on an LXDE while it works on Unity.