I’ve been having some issues recently with the sync between the app on my computer and phone.
Mostly it works fine, but then it doesn’t for random emails. For instance, occasionally an email that is archived or filed on one stays in the inbox on the other. Similar things happen with snoozed emails.
At least daily I’m having to deal with the same email twice to manually keep my inboxes in sync. It’s very frustrating and seems like it must be affecting other people.