This happens to me ALL THE TIME.  That plus the crashes after I play a while make it impossible for me to get far enough into the game to test more than a small fraction of its tech tree.  Makes testing anything else pretty pointless.

And its also hard for me to believe that the devs don't have their own samples.

I'd just like to vote for a quick fix for this and whatever memory leaks or whatnot cause the crashes in the first place.  Until then, I can't meaningfully test the stuff we are supposed to be beta-ing.