My XCover 4S updated over the weekend (did anyone else's Android update?) to Android 11. No issues there, although a few settings needed re-setting and I'm mostly back to normal.

However, I've since found that my POP mail is not synching using the Samsung Email app. I had it set to check every 15 minutes, and it would dutifully display the envelope notification when there was a new e-mail.
Since the weekend, this simply isn't happening. I hadn't had anything since Saturday. Went into my e-mail tonight, lo and behold there were 4 e-mails in there, one from Sunday and three from yesterday.

I turned off and reactivated the synchronisation, and made sure it was set to 15 minutes. Sent a test from Gmail, nothing received. I go into the app and only then it syncs.

Added my Gmail account, same deal, not synching. Cleared the cache for the Email app, nothing changes. Restarted the phone, nope. It refuses to sync automatically.

Has anyone else had this happen? Any suggestions? I'm tearing (what's left of) my hair out trying to figure this out. It worked perfectly until the update, now it only syncs manually, which is not what I want.