Pairs game problem

I am trying to redo pairs game proposed as an example in gdevelop.
My problem: cards are not properly aligned at the begining of the scene, although I did everything the same as in the example.

Preview of my game:

Preview of the example:

My editor:

Editor example:

To check, are your position_placeholder objects lined up in a grid?

Yes all the position_placeholder instances are well aligned and the origin points of the position_placeholder object are the same as in the example (x = 32 and y = 32)

Response in the other post.