Crisis Core Final Fantasy VII

[Netherspark]

I've been trying to copy my saves of Crisis Core from my PSP to the emulator, but the screen just goes black when I try to load them. Here's what I did:

I copied the PSP's memstick folder to the correct location, but the game couldn't find them when I tried to load them in PPSSPP. Then I noticed the saves had slightly different names to the save I made from the emulator (the PSP was ULES01044DATA0, and PPSSPP was ULUS10336DATA0). So I changed the names of the folders to match the emu ones, and they now actually show up in the game. However when I try to load them the screen goes black and nothing happens.

I thought it might be due to different regions, so I got the EU version of the Crisis Core rom and tried again but it's still the same problem.

Can anybody help?