Oh opening checkpoints isn't the issue! I manage to open Checkpoint in Full Memory Mode without any issues. Applet mode indeed doesn't work though. What I was saying is that "Cheats" don't work, even in Full Memory Mode. Guess we'll just have to wait for an update ?
The "Compatibility Release" of checkpoint still crashes for me on 12.0.1 when clicking on "Cheats". Any updated/patched versions been released by any chance?