ok, I'm posting this again, because I haven't gotten a response, and I've found other people with this problem.
The purple gates with angry faces on them will freeze my game once I finish the section they are in. When they lower down to let me proceed, I must force quit my game and restart, and hope that I get put back into the level where I left off. Sometimes it takes an extra 10 energy from me just for fun. This is very annoying, and seems to come and go as it pleases. All my settings are on the lowest, my connection is fine, and my cpu usage is just as low as it should normally be. someone please help me?