The game clears the subtitle/letterboxing areas during cutscenes by blitting a black image onto the back buffer... yeah, clearly using viewport clears was too much for them. Our back buffer guard kicks in and does not allow them, unfortunately. Allowing them, however, completely breaks rendering, so that's not an option either.
Using DXVK_CONFIG="ddraw.backBufferGuard = Disabled; ddraw.backBufferWriteBack = True" somewhat improves the situation, however some main menu elements become invisible, and there's still heavy flickering of the subtitle text.
The game clears the subtitle/letterboxing areas during cutscenes by blitting a black image onto the back buffer... yeah, clearly using viewport clears was too much for them. Our back buffer guard kicks in and does not allow them, unfortunately. Allowing them, however, completely breaks rendering, so that's not an option either.
Using
DXVK_CONFIG="ddraw.backBufferGuard = Disabled; ddraw.backBufferWriteBack = True"somewhat improves the situation, however some main menu elements become invisible, and there's still heavy flickering of the subtitle text.