Wild Pokemon Flash Instead of Fade In

[KirsVantas]

In Pokemon Black/White, wild Pokemon appear in full brightness before flashing at the start of the battle, instead of fading in like on console. I recorded the incorrect effect in MelonDS and have attached it, it can be found here. My video settings have also been attached and can be found here. I have verified it happens both when using OpenGL and when using Software Rendering.
I am using MelonDS 0.9.5

[RSDuck]

Real DSes screens have a very slow response time compared to pretty much every display these days. Thus a flickering like this is often used as an easy way to create transparency.

[KirsVantas]

Its not flickering, it starts not faded at all, then fades in quickly once.
EDIT: Also, other fades on Pokemon, like the white fade when catching one, works correctly

[Jaklyy]

that is weird
good catch
weirdly enough the effect works properly in black 2
i wonder what's up

[Jaklyy]

The effect is done via updating texture palettes.
The game is just loading the wrong initial palette for no clear reason.
That's gonna be fun to debug.

[Jaklyy]

So the game actually loads the correct (darkened) palette first, and then one frame later loads the wrong (bright) one for... some reason?

[RSDuck]

could it be an issue with rasteriser timing?

EDIT: melonDS currently only synchronises the palette in one spot. Mid frame palette changes would not be immediately applied.

[Jaklyy]

no i dont think that's the issue.
the palette updates happen well before anything is rendered, including on safe vcounts

[Jaklyy]

update: its a timing bug.