Gran Turismo (Japan, Asia) - after-race replays go out of sync

[Thelypody]

CHD game image converted from Redump, Japanese BIOS 7000, no special core features enabled. Core version 20221023.

Gran Turismo 1 features watchable replays after each race. Going into the game's Quick Arcade mode, finishing any race in any car and watching the following race replay exposes that it goes out of sync, with player car starting to drive into obstacles sometime after a minute, regardless of how clean you raced before. The game shows no anomalies otherwise in playable sections.

[Kuba-J]

Use turbo option as a workaround. Turbo (Medium) is enough. PAL and NTSC-U version works better without turbo. PAL version is rock solid for me.

[Thelypody]

I've played a bit with the latest core release and I'm pleased to say that the core behaves much more stable now. I've watched around a dozen replays and the only time I saw a car driving into the wall was when I opened the OSD menu (but I guess that all bets are off when you do that, so I do not count it). If no one else can reproduce buggy replays, then I assume this issue can be closed as fixed.

[Thelypody]

Tried to test once again today and the very first replay went out of sync, so unfortunatelly the issue still persists. It seems like it happens more often to slower cars (class C in Quick Arcade mode).

[Kuba-J]

Second workaround , use PSX2XCPU core , works great! Even without turbo ;)

[rhester72]

NTSC-U absolutely requires medium Turbo for consistent replays.