Well, we tried. We're still not able to replicate the error on our systems so very difficult to "fix". I would suggest doing what others said which is to use the upgrades options to max out your batsuit or whatever then not use the health option unless you really need it.
How exactly is Arkham City running on your systems (GFWL-wise), just so we can try it that way?
Despite new trainer steam crashes after 1-5 minutes and also kills Batman with one hit, if option 2 is used. This was tested with steam offline. The same online or game crashes almost instantly.
Correct. Option 2 now seems to kill Batman/Catwoman with only 1 hit in the Steam version now. Highly recommend *not* using option 2.
Don't know if this helps, but I can consistently get the game to crash using the trainer whenever I switch from an "in-engine" cutscene back to control of Batman. Almost immediately the game freezes and crashes. Very easy for me to duplicate.