Missing emails in the list

[skyboysea]

Steps to reproduce

1. Select inbox in the folder list
2. Refresh the emails list to be sure it is in sync with the server
3. Compare the list displayed in Mail to the IMAP server list

Expected behavior

The list in Mail and the list on the IMAP server should show the same emails

Actual behavior

Some emails are missing in Mail

Mail app version

5.9.2

Nextcloud version

34.0.0

Mailserver or service

runbox.com

Operating system

Linux

PHP engine version

Other

Nextcloud memory caching

APCu Redis

Web server

Other

Database

MariaDB

Additional info

The pop up info menu when clicking the 3 dots on the folder actually shows the right number of emails both read and unread.

[skyboysea]

It might be related only to the inbox. A message not displayed in the inbox folder when deleted using another client shows up in the trash folder as expected. Inbox is even very slow to update when the refresh button is used.