18.2 Mail is a mess. Nothing in agreement for unread emails - app icon shows six unread, when you look at list of mailboxes (I have five mailboxes on my iP), the individual unread numbers are all dead wrong and don't add up to the amount noted for Unread. To boot, a folder in one of the accounts has ZERO unread yet on iOS mail it now shows 22 unread.
For example, under mailboxes account #1 shows two unread but in reality is three. Account #2 shows zero unread yet in reality is two. Acct #3, which is iCloud, shows three but is actually six. Acct #4 shows zero but is actually four, and acct #5 shows one but is really thirteen. Add up all the actual numbers and that matches the 28 that is what Unread shows under Mailboxes, but that is the only correct number anywhere.
I spent the better part of an hour on the phone w/ senior advisor yesterday and it's been "escalated," unfortunately I won't hear back until Sunday since the SA I spoke with is OOO until then. And yes, have forced quite, rebooted, signed in/out of accounts, reset network settings, nada. 🤷♂️