Hi, I've had a resent issue that took me ages figuring out and thought I'll share it for future reference. It could be described as a flicker, after image or that the sprite seems out of position on animations. The animations uses the AnimationPlayer node and a position property track that's set to discrete. On higher frame rates it may only flash for a frame, but if the FPS is set to something low like 10, it becomes obvious what is happening. Physics interpolation was reintroduced in Godot 4.3 Dev 6 and it's great, it's however caused the flicker. With physics interpellation on, the position of the sprite interpolates to the new position even if it's set to discrete transition. The solution is to turn of physics interpolation in the inspector for the the sprites used in the animation. The sprites will still see the benefits of physics interpolation if they are children of for example a CharacterBody2D that has physics interpolation enabled.

I know it's a minor thing but it was not obvious for me what it was as it was happening so fast and it is also not present in the editor. Maybe I'll be the only one that struggled with this, but if there are any others feel free to leave a comment!