After umbrel upgrade, lightning node stuck "installing"

I upgraded to Umbrel 0.5.1, running on RP 4 (8Gb). The Lightning Node app has been stuck on “installing” since then (several days). I’ve done several clean restarts, but to no avail.
I’m thinking I need to stop the pending install and somehow clean it up before attempting again, but I can’t find the steps I need to take.
Help would be greatly appreciated.

Maybe try this:

You must make sure to have the most recent channel backup and 24 seed words before doing anything else.