Every time I save in the middle of a Campaign mission and then reload my saved game, the game freezes on the loading screen right after it starts to stream data. Sometimes the game shuts down completely. After re-logging in, I am able to load into my saved game, but the problem reappears if I save again and load.
It's actually fine if I play through the mission in one take. The system will load into the next mission/cut-scene normally.
I tried everything from deleting Battle.net cache to file permissions to the repairing tool, except a full re-installation. I think this starts to happen much more frequently after I upgraded to OSX 10.8.3 last weekend. I'd appreciate if someone looks into that issue. Thanks.
PS: The wifi connection in my room is not superb and I have 200+ saved games in the campaign. I don't know whether either would contribute to the problem.