1) Have you tried a new profile for the first 2? Maybe you corrupted your profile.
2) Are they all region-free games?
3) Did you use Xextool 6.2 or 6.3? Even though 6.3 is newer I've been seeing some issues with it, and I'd recommend to go back to xextool 6.2 for patching.
1. Yes
2. Not all, but region is correct
3. Tried that
Nothing worked. any other suggestions? It's a pal box