The view of the scene is shaky

Hey everyone !

I've made a animated scene in Adobe Aero (0.18.4), starting first without a image anchor ; i had no issue when i was watching it on my phone (iPhone 12 mini on iOS 16) via the QR code. 

I added a image anchor, and now the view of the scene now is very shaky, even if the phone is completely still. I tried with an image on my Mac, and a printed image, but the issue is the same. 

Is anyone having the same problem ? Do you have any solutions ? Thanks !