- Repaired the folder via Folder Properties > Repair Folder.

- Checked for active Quick Filters (none are active).

Hello, I am experiencing a critical issue where all received emails for one specific IMAP account have disappeared from Thunderbird. They are NOT visible in the Unified Inbox, nor in the account's specific Inbox folder. - The Inbox folder is completely empty (or only shows a single test email I just sent to myself). - The emails are NOT visible on Webmail. All of them are stored in Gmail, which I'm willing to move away from. I already have toggled the "keep a copy of the message" in the mail settings in Gmail but nothing chanced. - When I try to "Subscribe" to folders, the checkbox for "INBOX" is missing or grayed out. - Thunderbird shows a notification for a new mail, the mail stays here for a few minutes, then it disappears. - The test emails I sent a couple of hours ago already disappeared. - This happens with only one specific email. All the others work fine. What I have already tried: - Removed and re-added the account entirely (multiple times). - Repaired the folder via Folder Properties > Repair Folder. - Checked for active Quick Filters (none are active). - Verified Account Settings > Synchronization (set to "keep all messages local regardless of age"). - Tried toggling "Show only subscribed folders" in Advanced Server Settings. Can someone please help? Thank you