Persona 3 Portable

[Paragone]

Persona 3 Portable
JRPG
USA version
Iso
ULUS10512
Android 6.0
The game is playable, except that some squares appear around objects. I managed to make these disappear by changing the texture filtering, but this doesn't work for the level up and some cutscenes (for example when the Highschool becomes Tartarus).
I have some pictures but they are too large, so I am not able to attach them...
Basically in the "Tartarus metamorphosis" cutscene each moving object appears as having a black rectangle around it. Then, on level ups there is a sillouhette of the character moving in the background. On PPSSPP this sillouhette has a black border, which should not appear...