It was mirrored and colour was messed up before the rotate, too. Does the V1 logo come up blue when you power on?
I’ve seen other people with this issue as well. I think I remember that it’s something to do with a new batch of LCDs, but since I don’t have the issue, details are hazy.
SKR Pro 1.2, TFT35, I think I messed up
Yeah, there’s a thread on it I linked.