I was actually the original poster on this thread with this issue.
It actually has just gone away and I can’t for the life of me tell you what we did from our end to make it finally stop. I just kept going in and dleeting URI_NOW.conf every time it showed back up every couple of days, and now it’s finally stopped happening.
If it matters at all we’ve updated to WordPress 5.8 as well.
Sorry I couldn’t be more of help!
Mike Madigan