Thunderbird calendars are always Read Only on restart
I have a number of shared calendars on Nextcloud that I share with others. These are family calendars so that we can see each other's schedules, etc. As the Admin for the accounts, I have write access to each. However, when I restart Thunderbird, every calendar is marked read only, including my own, which should NEVER default to read only. How do I fix this? I should be able to set read/write status once and have it persist.