Okay Mark, I could have PM'd you, but I wanted to make sure you saw this pic after my first run through. Long story short, I can reproduce the problem. It crashes while playing out games periodically as far as I can tell, repeating the enter key one bat at a time. I want to point out, too, that imported leagues often have a pretty deep history, including changes made along the way, often during creation or early creation process, so I normally will run a Purge to clean up data taking up space, but no longer really there. See pic. After the Purge, I thought the game performed pretty well, and I would suggest you do it, but finally after a few days, I was able to get it to crash every game, really, if I hurried the enter key. I'll keep looking at it, but it will get in line for Markus, if I can't find anything else out. Sorry I didn't have great news. Yet.
Hang in there.