Mega Bezel shader turns black with the PS2 core when loading (?)

[Noon-GH]

Pretty much as title, shaders are default settings, same things happens with the Mega Bezel shader bundled with Retroarch, the actual Bezel turns black every single time a loading screen cues in, same when cutscenes load in (An example in Going Commando would be when you change planets, it also happens if you boot from the bios start up screen).

Both Retroarch and the PS2 core are using Vulkan as an API, integer scaling is disabled, and aspect ratio is set to full, resolution is also set to Native.

Example of what I'm talking about:

[SixWingedFreak]

Also experiencing this. Koko-aio also causes this behavior, I would assume all shaders do. As OP said, seems like between during any transition the core just sets the screen to all black and drops the shader for a moment. 5060ti driver version 596.21