Environment custom backgroud distortion

[-Nick-]

Hi,

From time to time I use the custom background feature for environment and recently it stopped working.  The background image is totally distorted like this :

If I start an in-canvas render, the background changes to look like this :

Anyone have an idea what's causing this weirdness? I just did, (was forced to do), a win11 upgrade btw but believe this started beforehand.  In any event, the upgrade didn't fix it.

[-Nick-]

I figured out, (finally), that selecting 'Flatten Ground' creates the distortion but without it I can't scale my model correctly to fit the environment. I clearly have no idea what I'm doing.

[felixcreative1]

I'm having the same problem, did you work this out?