Hello, I have the same issue.
I'm using release 114 (64-bit).
When I jump onto a platform and the jump and the jump movement is not finished yet and you then touch the platform the character slides to the left or right.
I tried several options to stop this, but the only thing helping is if the player pushes a key to stop the movement.
Searched the tutorials and the forum but didn't find a satisfying answer, the issue is best simulated with a low jump strength.