Specific mailbox is not synchronized

[Jan E. <te...@ed...>]

Hi,

I synchronize a mail account with very few (large) mailboxes on two
machines using isync/mbsync. Each mailbox contains messages from a
single year, with 'Archive' being used for the current year.

After the initial sync on the second machine (with isync 1.4.4), I ended
up with ~ 6800 messages instead of ~ 8400 messages in Archive, while the
older mailboxes (> 10,000 messages each) were synchronized entirely.

Although each sync completes without errors and takes 'Archive' into
account (according to the output in debug mode), the 'Archive' mailbox
seems to be detached from the far side, and if I manually copy messages
to 'Archive' on the second machine, they are not propagated to the
server.

The Inbox is synchronized properly.

Is there anything I can do to debug?

- Jan