Hi, I'm running Samsung email app 188.8.131.52 and latest FW.
About 2-3 weeks, I've been running into this problem again. Every few days, I have thousands of read emails that are marked as unread. I mark them as read and a few days later I have the same problem again. I have several imap accounts and it happens to all of them, not one in particular. I've tried deleting and readding them. I had this problem a while back on my s9+ and now this started happening on my s10+.
Any of you with this problem ?
I bet everyone here is from Ireland. Its caused by the Covid-19 app, Google are working on a fix. I had the same issue and deleted covid19 app and am back to normal so far today.
Hope it helps