My INBOX folder is empty and does not receive any new emails. All emails are still visible and coming to "All Mail" folder. If I get emails and open Gmail app on my phone or tablet, the emails are in INBOX and all is well, but as soon as I open Thunderbird on my PC all emails "jump" to "All Mail" folder, leaving INBOX empty. After that even when opening emails on my phone with Gmail app, the INBOX is empty I tried moving some emails from other folders to the INBOX, by selecting and choosing "move to the folder" but they "jump" straight back, nothing appears in INBOX Can someone please help?