Sky Replacement in Photoshop

I have the same problem.  I have M1 Macbook Air, Big Sur, PS 22.5.1.  Tried using sky replacement at first and it created a mask shadow sitting on the top left of the image in oreview.  Uninstalled PS, reinstalled and ran sky replacement.  The mask shadow disappeared, but there was no change to the image.  e doeOn selecting th sky, the preview image does not change.  Clicked applied and the sky replacement group appears in the layers panel, but there is no change in the image.  I tried your last suggestion to Deactivate Native Canvas and restarted PS.  No change to sky replacement, same problem.  Attached are screen shots.

@defaultyz8ydhncgwu2 I just put the sky replacement feature through a rigorous test on version 22.5 and it worked great; quite fast, too, and I'm using an older system. However, I'm on Windows 10. We'll need to know more about your exact PS version and OS to see what's going on. Did it just stop working on only one image or does this happen with any image you try? Are you outputting the new sky to a separate layer? And even though that layer is visible and on top of the original layer, there is no change in the sky?