Why it moves so jerkingly?

I use small sprites, the biggest of them is 64x64. The problem is when the camera moves(or objects are moving) they do it with some jerking\shaking. Also this is visible when the camera moves.

You can see it on the video(on the video it does not look so horrible, but in the realtime play does):

At 0:10 look at the big gray square stone's edge.

Sometimes you can even see a background through the gaps that these jerkings make

Found this thing.

When the player makes some steps - a gap at the edge of the stone appears - make some steps again - it disappears.

How do u people make your games without these annoying things?

In debug mode it says that the x and y coordinates of the gray stone are not changing.

It is virtually impossible to diagnose a problem from just images and a video.

Please consider posting a .capx so we can test for ourselves and hopefully offer a useful solution.

It is virtually impossible to diagnose a problem from just images and a video.

Please consider posting a .capx so we can test for ourselves and hopefully offer a useful solution.

Here it is

But there is almost nothing inside. Just a platform behaviour