I think this too might have something to do with sexrepro. The sim I posted in the last bugrep ran stable for more than 15 hours. At that point I had to restart my computer. After trying to load the sim again and I got the following error after a long while of loading:
"An Error Occured. Darwinbots cannot continue. Sorry. Invalid procedure call or argument Darwinbots 5 0"
And when trying to load any other sim I got the same error again. When I quit darwinbots to restart it, I get this error:
"Unable to save settings: some error occured"
And after pressing ok, this:
"Run-time error '55': File already open"
After pressing ok again, darwinbots closes.
After restarting, other sims run fine, but I still can't load this sim. All the autosaves from the sim act the same way.
Another cause I can think of could be the amount of mutation details. The sim has about 1000 bots and every reproduction event has added a line in mutation details, so the .sim file is bloated at 43 MB unzipped.