Almost everytime I delete top message from messages list in inbox all other messages dissapears. Switch to another folder and then switch back - returns other messages. Tryed to reproduce this within other folders, but with no luck. Tryed to move some messages in inbox and then reproduce - no luck too. Move messages, mark them as unreaded - first top message was deleted without the bug, on second - other messages dissapears again. Reproducible: Sometimes Steps to Reproduce: 1. Have some unread mail in your inbox (may be in other too, but only with short messages list) 2. Delete messages one by one from top Actual Results: Messages list become visually empty, but messages still present - you can switch to another folder and switch back to get messages list back.
It happens to me too... though not every time... Once I remove or move the 1st message in the list the message list disappears and only appears after going to another folder and coming back.
This bug has never been confirmed for a Kontact version that is based on KDE Frameworks, except possibly a Technology Preview version 5.0.x. Those versions differ significantly from the old 4.x series. Therefore, I plan to close it in around two or three months. In the meantime, it is set to WAITINGFORINFO to give reporters the opportunity to check if it is still valid. As soon as someone confirms it for a recent version (at least 5.1, ideally even more recent), I'll gladly reopen it. Please understand that we lack the manpower to triage bugs reported for versions almost two years beyond their end of life.
Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.1 aka 15.12, preferably more recent), please open a new one unless it already exists. Thank you for all your input.