It actually affects 1.16.5 but it did not show on the list.

My cat won't stand up. I try to make him stand up but I cant. I try to click him with the right click but it wont work. It's tamed by me, it even has a collar, I'm in a singleplayer world, so that means that it's mine.

However, I try to make him stand up but he won't. I give him fish but he won´t. I have tried so many times, but he won't stand up

Not even with a lead.