Issues with Memory-Stick since last update

[SirALX]

Update: i updated lr-ppsspp from source again yesterday hoping that this solves the problem.
I did not, it got worse: now no game saves at all, "not enough space available on Memory stick ProDuo".
I tried to generate a savestate with ppsspp-standalone and copy this one to the lr-ppsspp save-folder.
It worked once!
The Game (Williams Hall of Fame Pinball) started with this copied save-state and wrote a save file in "/home/pi/RetroPie/roms/psp/savedata/".
But with the next try to austosave the score after playing a table the error occured again "not enough space available" :/
I have absolutely no idea what happened, i did not change any settings, i only updated the core.

EDIT: just found another guy who has the same problem, also since last Monday, using lr-ppsspp on a Nintendo Switch after updating Retroarch.
Could this caused the issue? I also updated Retroarch before i updated lr-ppsspp to version 1.10.0 to get support for the retro-achievements.