That sounds like the entire client is freezing up, next time you run it can you leave the logger open and post a copy if this occurs and anything fishy pops up in the logger? I would try allocating more ram to OSBot and seeing if that resolves the issue. I have yet to replicate the bug but as you noted it seems to happen randomly and sometimes not at all.
As for the suggestion I can do that, it will not be for a week likely as I am using my free time to wrap up end of semester projects.
Sure, you have one now.
Best suggestion I have is taking it slow, a few hours every couple days is a good idea.