normal/mimiga ending glitches out

[32JP]

What happened
After the final boss gauntlet, on the normal/mimiga-mask ending, after jumping off the island the ending sequence glitches out. When Kazuma catches you, the text boxes and text is corrupted and the island falling down screen before that bugs out. the music doesn't play properly either. And the whole credits sequence is off and I think it freezes at the end too.
Also I think when the game shows whats happening around the island, the screen fades out earlier than the original game? at least when playing in PAL50hz.

Screenshots
https://www.youtube.com/watch?v=AlP9406AeK0

Version
"doukutsu-fi-202310192115" build.

Environment
Fusion 3.64 emulator in PAL50hz mode, I can test this on real hardware later.

[32JP]

I tested it on real hardware, PAL mega drive II in 50hz/PAL mode:
https://imgur.com/a/60bM5dO

There it hard crashes on 0:54 in the video, also the ÖÄöä bug happens much earlier(on the Misery fight) than on emulator.

[32JP]

I tired on real hardware second time, this time in 60hz/ntsc mode, it doesn't crash, but the glitchiness still happens and the game slows down heavily and the picture starts rolling like its out of sync, and the graphics are still glitchy and music doesn't play properly.