CalDAV personal: Switch item ON only during server reload, but on time for OFF

Today I tested OH snapshot (2.5 #1491) on an x86 Linux machine using Xubuntu.

I just copied my config and item files. The missing fire for the Switch occurs there as well.

Some people reported that their Switch is working. Is it possible that they chose a periodic server check ( reloadInterval) of one minute or so? This would mean the trigger comes on time, but that also the caldendar server is called every minute which makes no sense…