Wed, 08 Apr 2026 17:19:22 +0000 https://bugs.horde.org/ticket/13575?Horde=49116a50e2ece522594d13bdce824367 Inbox becomes blank when rapidly displaying several messages 1) Log into a mailbox with some 100 mails in it 2) Use the arrow down keys to navigate the inbox: continue going down the list ~2 entries per second for around 3 seconds and then stop. 3) Suddenly the inbox becomes empty, no mails are displayed anymore. 4) imp has to be reloaded before the folder is displayed non-empty again. The bug is somewhat fragile to reproduce. For one it is most easily triggered when a user didn't log in for a while (probably due to caching), it seems to rely on the imap backend being able to server every request fast enough and the speed at which mails are navigated. Even so i can trigger it regularly and users report it regularly. we cannot exactly pinpoint the release where this was introduced. Please let me know if you can reproduce it. Wed, 17 Sep 2014 08:35:49 +0000 https://bugs.horde.org/ticket/13575#t85788 I cannot. Fri, 19 Sep 2014 10:46:18 +0000 https://bugs.horde.org/ticket/13575#t85824 > I cannot. ok, i am trying to get you more datapoints: - i can most easily trigger it with chrome - the triggering viewPort response stands out by having rowlist_reset: true - the condition is followed by "Uncaught TypeError: Cannot set property 'VP_rownum' of undefined" (https://github.com/horde/horde/blob/bb18b225fb770ce54b6b83d0313b710d7b954908/imp/js/viewport.js#L1518), this is however not the cause but merely a secondary effect here is an example viewPort response triggering it: /*-secure-{"response":true,"tasks":{"imp:viewport":{"label":"a label","totalrows":1108,"rowlist_reset":true,"rowlist":{"1105":52,"1104":53,"1103":54,"1102":55,"1101":56,"1100":57,"1099":58,"1098":59,"1097":60,"1096":61,"1095":62,"1094":63,"1093":64,"1092":65,"1091":66,"1090":67,"1089":68,"1088":69,"1087":70,"1086":71,"1085":72,"1084":73,"1083":74,"1082":75,"1081":76,"1080":77,"1079":78,"1078":79,"1077":80,"1076":81,"1075":82,"1074":83,"1073":84,"1072":85,"1071":86},"data":{"1105":{"flag":["\\seen","list"],"size":"12 KB","date":"03.09.2014", [...] },"cacheid":"VTExNTcsVjEyNjA5NzY5ODAsSDYyOA==|12|1|D261","view":"SU5CT1guZnVsbGRpc2Nsb3N1cmU"}}}*/ Fri, 19 Sep 2014 13:01:13 +0000 https://bugs.horde.org/ticket/13575#t85827 also i just realized i said "blank" but i should have written that I see "This folder contains no messages". Fri, 19 Sep 2014 13:04:12 +0000 https://bugs.horde.org/ticket/13575#t85828 Any progress on this ticket? We are still plagued by the problem! Wed, 03 Dec 2014 17:14:41 +0000 https://bugs.horde.org/ticket/13575#t86654 I have never been able to reproduce. Without a reliable way of reproducing, nothing more can be done here so marking as stalled. Keyboard navigation was already rewritten in IMP 7 awhile back, so maybe that will help you out in the future. Thu, 08 Jan 2015 03:23:43 +0000 https://bugs.horde.org/ticket/13575#t87062