I started to use camera that follows sprite, so I can see the sprite, but when sprite with camera move approximately to the end of the visibleSize of the Screen (not of the camera) Sprite disappears and when it moves back it appears! What to do with it?
Hard to say what the problem might be without seeing your camera settings.
Might help to review response #14 in this post to see if you are setting things correctly.
If you still have the issue, then post your code showing how you setup the camera, sprite and the following of the sprite.
I don’t setup camera, Im just using default one. In the update method I change only the cameraY coordinate/