Sorry, all my modding time is allocated to SOA2 at the moment.
Runs some AI only game on 8x with 1 race only against the same race. You can run multiple test games at once. So for finding an old error is soa2 I would run 5 games, 1 with fed vs fed. 1 with kli vs kli, etc. If the error pops up in most of your games, chances are it is a planet, gsd, or to long a string, make a few quick custom maps and repeat the process.
You probably already know, but just in case
A > D > B will turn your player to AI player, then just minimize and start another DEV exe and repeat