User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
Steps to reproduce:
I use more than 10 different Google calendars.
Some of the calendars are read-only.
I'm using "Provider for Google Calendar".
I sort the calendars in the left panel as I like it.
I notice that the order changes on its own again and again.
I want the order to stay the way I set it.