Crash : Segmentation fault
Just after beginning playing a new map (not in the campaign), WFTO crashed with a segmentation fault. In fact, this caused the whole system to cease to function, as the GPU ceased operation.
Here is the crash report. Your system does not seem to allow posting the 4,3MB crash report, without however writing out any message about this, which is very annoying.
This happened a second time, with the same map (Fire Chiasm).