One of the pieces of bad advice I got while trying to diagnose the Let’s Encrypt problem was to reset my Nextcloud File Sync client connection. No big deal, they said, just recreate the connection.
BY THE WAY (said no one) WE’RE GOING TO TRASH FILES WAITING TO SYNC.
Well, I’m being a bit overly dramatic here. The files aren’t syncing, but I do see them on the laptop they were transferred to. So they are not lost, which is important because they were audio recordings of speakers from Wednesday the 24th and Sunday the 21st. But the sync process that worked before, now isn’t. It reports everything is fine, but the files are not copying across.