Created attachment 161406 [details] Example calendar SUMMARY Korganizer does not show any events after importing an iCalandar file from Microsoft 365 STEPS TO REPRODUCE 1. Right click the calendar list and click add calendar 2. Choose iCal calendar file 3. Choose some ICal file, e.g. the attached example OBSERVED RESULT It creates an empty calendar directory EXPECTED RESULT It creates a calendar with the events from the file SOFTWARE/OS VERSIONS Operating System: openSUSE Leap 15.5 KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 Kernel Version: 5.14.21-150500.55.19-default (64-bit) Graphics Platform: X11 Processors: 16 × AMD Ryzen 7 1700X Eight-Core Processor Memory: 62.7 Gibyte of RAM Graphics Processor: AMD Radeon RX 6500 XT
I was able to add calendar for your attachment using modern Kontact/Korganizer (version 6.3) reopen this if it still fails for you with a more modern version