https://bugs.kde.org/show_bug.cgi?id=376202
--- Comment #10 from Łukasz <lrajchel1...@gmail.com> --- > So far I haven't seen this bug in 5.4.3 Kmail version, though it happens > that filters don't move the messages to their destination folders. > > I noticed that in some cases the destination folder fields are empty in > filter settings, but after restarting kmail and akonadi they're back. Additionally, I noticed that when the messages that undergo filter rules appear inside Inbox directory and are almost immediately moved to their folders through the filter rules, I get the infamous "Retrieving Folder Contents" message, as described in bug 297930, however, after some time I can read the e-mails again. Here is journalctl log excerpt: Mar 27 01:50:30 ll akonadiserver[22466]: org.kde.pim.akonadiplugin_indexer: invalid query "{\n \"cond\": 0,\n \"key\": \"\",\n \"limit\": -1,\n \"negated\": false,\n \"value\": null\n}\n" Mar 27 01:50:30 ll akonadiserver[22466]: org.kde.pim.akonadiplugin_indexer: invalid query "{\n \"cond\": 0,\n \"key\": \"\",\n \"limit\": -1,\n \"negated\": false,\n \"value\": null\n}\n" Mar 27 01:50:15 ll akonadi_archivemail_agent[22478]: org.kde.pim.akonadicore: Got a stale notification for an item which was already removed. 33978 "" Mar 27 01:50:15 ll akonadi_mailfilter_agent[22486]: org.kde.pim.akonadicore: Got a stale notification for an item which was already removed. 33978 "" Mar 27 01:50:15 ll akonadi_indexing_agent[22483]: "Unable to fetch item from backend (collection -1) : Unable to retrieve item from resource: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." Mar 27 01:45:29 ll akonadiserver[22466]: org.kde.pim.akonadiplugin_indexer: invalid query "{\n \"cond\": 0,\n \"key\": \"\",\n \"limit\": -1,\n \"negated\": false,\n \"value\": null\n}\n" Mar 27 01:45:29 ll akonadiserver[22466]: org.kde.pim.akonadiplugin_indexer: invalid query "{\n \"cond\": 0,\n \"key\": \"\",\n \"limit\": -1,\n \"negated\": false,\n \"value\": null\n}\n" Mar 27 01:45:15 ll kontact[22528]: org.kde.pim.akonadicore: Got a stale notification for an item which was already removed. 34908 "" Mar 27 01:45:15 ll kontact[22528]: org.kde.pim.akonadicore: Got a stale notification for an item which was already removed. 34907 "" Mar 27 01:45:15 ll akonadi_mailfilter_agent[22486]: org.kde.pim.akonadicore: Got a stale notification for an item which was already removed. 34908 "" -- You are receiving this mail because: You are watching all bug changes.