Visual bug (bad sprite after merging)

The image of the monster and its sprite that follows the hero do not have the same colors after a merge.

That it is not perfectly faithful, I mean. But here on the image it is black and yellow. But his sprite is all yellow.

It’s not the only monster like that.

Is there anything you can do? Do we need to report all these problems to you to correct them one by one?

There’s nothing I can realistically do about this - these palettes are created programmatically and if I altar the code, it will throw a bunch of other sprites off instead. Some of them aren’t perfect, unfortunately.