since a recent update (yesterday or so) kmail no longer shows the new mails in the message list. I see the number of new mails e.g. in the systray notifier, I see the same number in the folder tree beside the "inbox" name and also in the favorites but clicking on my "inbox" folder does not show these new mails. Selecting any other folder and going back to "inbox" does not help. (In recent versions I sometimes had the same problem but often clicking on a different folder and back to "inbox" solved the issue. No more it seems). "Expand all threads" or "got to next/prev unread mail" does not help either. Only solution is to quit kmail and restart it. After the new start, the new mails correctly show up
I saw that issue a couple days ago, rebuilding everything was enough to fix the issue.
Rebuilding what? - The code? - Or the data? When data, how did you rebuild it?
Did now a clean build, but does not resolve the problem.
I confirm that I have this problem too. I rebuild kdepim I need to restart kmail after receiving emails... It seems that it's an akonadi problem.
Git commit a9af352959abf95c25c6bc6e42df34a192d14ee8 by Daniel Vrátil. Committed on 27/07/2018 at 18:59. Pushed by dvratil into branch 'Applications/18.08'. Server: fix Item notifications being rejected on mimetype filters FIXED-IN: 5.9 M +2 -0 src/server/storage/notificationcollector.cpp https://commits.kde.org/akonadi/a9af352959abf95c25c6bc6e42df34a192d14ee8
I confirm it's fixed. Thanks