[Crash]issues with alt+Tabing during loading

alt+tab out during the loading screen causes the client to crash harder than little bastard. this has only been occurring for the last two patches. It happens often enough to be a real problem. patch 6.20 it would just hang for ever and occasionally let me back in patch 6.21 the only game I've tried playing the client just up and disappears all together. Before that everything was fine with alt+tabbing so it is safe to assume this is not a intended feature of the recent two patches.

update:tried two more games one worked, one just didn't load again guess I'll go play other games if this happens once more don't like getting reported for client side fails.