I have been trying to add an event that span over a month to my calendarium, but it seems that calendarium fails at that.
Things I have tried
I tried inserting into the properties fc-date and fc-end, and the date is before the end of the month, while the end is after, but in the Calendarium sidebar the event appears only until the end of the month. It works fine if beginning and end are both in the same months.
It might be worth mentioning I am using my own fantasy calendar while doing this.
Hopefully someone can chime in here, but if it’s a community plugin issue, I go straight to their GitHub page and look for similar issues, double-check their README and setup steps, etc.
Their GitHub page is linked in Settings > Community plugins > Plugin-name.