What happens:
The game is primarily made of FMVs, and during play on PPSSPP (both PC and Android), the FMVs have extreme artifacting and corruption issues.

What should happen:
The FMVs should play normally. The visual issues are exclusive to PPSSPP and branches of it. The visual glitches are not present in JPCSP or on real hardware.

What hardware, operating system, and PPSSPP version? On desktop, GPU matters for graphical issues.
Hardware: Asus TUF Gaming laptop | Samsung Galaxy Tab S6
OS: Windows 10 Home v20H2 | Android 10
PPSSPP versions: Latest, and 0.9.9.1, x64 | Latest APK from PPSSPP site

Other specs:
Processor: AMD Ryzen 5 3550H with Radeon Vega Mobile Gfx 2.10 GHz
Ram: 8.00 GB