IMAP flag updates are sometimes not synced

[jknockaert]

I noticed that with recent versions of Bridge (since 3.9 or earlier) sometimes message IMAP flag updates (\Seen, \Flagged etc) are not properly synced. I couldn't exactly figure out what triggers the issue, but it seems to happen in a setup where one Bridge installation is already synced and a second Bridge installation is syncing the same account. If a flag is changed using the first installation (e.g. messages marked as read) while the second installation is in the process of syncing, the second installation will never pick up the flag change.

Am using Bridge on macOS.

[LBeernaertProton]

Hey @jknockaert , this is currently expected. While syncing we only allow certain events to be applied. Once the sync process completes the mail state will catch up.

[jknockaert]

@LBeernaertProton The problem seems to be that (in some cases) the second installation never catches up on the flag updates applied through the first installation while the second installation was in the process of syncing.

[LBeernaertProton]

Could you share the logs of the second machine? It would be great if it captures the whole syncing process and a couple of min after the sync has completed.

[jknockaert]

OK will try to post the logs next time this happens.

[LBeernaertProton]

We were unable to reproduce this locally.

[jknockaert]

Yesterday again I noticed that on one installation (of Bridge) a message was synced as "unread" whereas it was marked as read in all other installations (bridge and native apps). This didn't update automatically. Then when I today marked it as "read" in the first installation (in order to sync it manually) the instance of Bridge crashed. Unfortunately nothing of any use in the logs.