Need Help With Technical Problem In Lightroom ("Waiting for Settings")

"Waiting for Settings" is a fairly common problem recently, which Adobe hopefully will be able to fix soon. In the meantime, what usually works when I've encountered the issue is to make a small slider adjustment (e.g. Texture) usually in the app running on the system identified in the message. But as you say the system identified is the same system that the message is produced on, it's not possible to make an adjustment there. Do you by any chance have Lightroom Classic also running on the same system as the Lightroom desktop app? If so, make the change there. But if not, you could try making that tiny adjustment using LrM on your phone, then move away from the image (to allow the change to sync). Once synced, hopefully that will "fix" the Waiting for Settings condition and allow you to see the edits again.