https://bugs.kde.org/show_bug.cgi?id=416016
--- Comment #4 from David de Cos <david.de...@ehu.eus> --- Christoph Feck is absolutely right. I also applied all updates in KDE Neon, and assumed all the packages were 5.17.5 related, because that was all Synaptic was showing me. However, it seems that an akonadi update to build41 (same version, new build) snuck into my update too. The problem lies within those packages. I had to downgrade those packages to build39. This command did the trick for me: sudo apt-get install akonadi-backend-mysql=4:19.12.0-0xneon+18.04+bionic+build39 akonadi-server=4:19.12.0-0xneon+18.04+bionic+build39 libkf5akonadiagentbase5=4:19.12.0-0xneon+18.04+bionic+build39 libkf5akonadicore5=4:19.12.0-0xneon+18.04+bionic+build39 libkf5akonadi-data=4:19.12.0-0xneon+18.04+bionic+build39 libkf5akonadiprivate5=4:19.12.0-0xneon+18.04+bionic+build39 libkf5akonadiwidgets5=4:19.12.0-0xneon+18.04+bionic+build39 libkf5akonadixml5=4:19.12.0-0xneon+18.04+bionic+build39 -- You are receiving this mail because: You are watching all bug changes.