I too am having the same issues, despite reinstalling the beta, trying to roll back the patch to 1.7.1, reinstalling to 1.7.1.1, using the Six launcher to verify. Multiple efforts, no success. I am able to get into games fairly consistently, but like the OP I have no debug monitor, no loot, no zombies, am invisible in 3rd person, and do not deplete my food, water, etc. My solution at the moment is to wait for the next patch to roll through, this one has been pretty disastrous for me!