Memory cards & Savestates after upgrading

[Inocuole]

I'm sure this is addressed somewhere but after a good bit of skimming I'm just not seeing any similar threads.

The problem I'm having is probably pretty common, considering how many updates PPSSPP has endured (Thank you for keeping it updated regularly, I really appreciate it!)

Every time I try a new build of PPSSPP, when I copy my old save files over directly from the old builds folder, the memory card is always read as corrupt. This is also typically an issue with savestates as well.

Is there a method of importing all of that, or do I just need to restart progress for any games played on a new build?