Thank you @Orville
umbrel-lnd.conf should not be edited, only lnd.conf for values not available in the UI
umbrel-lnd.conf streamlines this and helps with the UI settings, anything not available in the UI you can add to lnd.conf or the UI settings will supersede it,
I try to explain this easily but usually overcomplicate from the explanation available in “locating the lnd.conf section in the FAQ:” Official Umbrel Troubleshooting Guide and FAQ
I believe this could be fixed by deleted umbrel-lnd.conf…
sudo rm -rf ~/umbrel/app-data/lightning/data/lnd/umbrel-lnd.conf
and restarting lightning (you can just do that from the UI scrolling down on advanced settings and save and restart), which should recreate umbrel-lnd.conf
Checking over everything else