Pokemon Platinum save

Ok I have the downloaded version, I use Pokesav, but the problem is that I am past the Elite Four and I captured Dialga and Palkia but I saved before and every time I save after that save it seems to load the the save right before Dialga and Palkia. Anyone got some answers.

Oh yeah I've tried the two save thing. It works, but is there a better solution.

and im using an r4

Go to this thread https://www.romulation.org/forum/index.php?topic=16350.0 and find the link to the download, there is a R4 Fixed rom, just rename your existing .sav data and it will work ;).