Created attachment 105336 [details] Top Message is an ICS File with some HTML Messagen, bottom two are Vcalender Message and Source Mails with information about VCALENDER Events or *.ics Events are not displayed as calendar events. When using an old instance, like e3.5, all events in mails are displayed correctly.
you can't confirm your own bug :)
Did you installed kdepim-addons ?
(In reply to Laurent Montel from comment #2) > Did you installed kdepim-addons ? I didn't and that fixed the problem for me! Thank you! Will ask at arch if the can adjust the kdepim-addons from optional dependencies to dependencies for convenience.