Memory cards & Savestates after upgrading

[vsub_]

Moving can't corrupt your saves...I've been moving tons of saves to tons of different ppsspp version because I often download betas and try saves on them(to see if something is fixed or broken).The only time I encounter a "corrupted" save is when I was trying my really old KHBBSFM save into some recent ppsspp build but I explained how the problem got fixed

On which games ppsspp say that the save is corrupted?