Static meshes moving by themselves for no reason!

I was working on the project for a few hours everything was fine, but suddenly I see that the window frames have moved…
Easiest way to correct would be reload the Datasmith scene I thought… it actually didn’t fix anything.

I went back to original 3D software and everything is fine there.

I was starting to work on the materials when I realized it.
Anyone know what can this be?

Thank you in advance for helping

Note: Don’t mind the purple tones and the pixelated light…