Thunderbird 90.0b2 / caldav subscription / freeze

Hi,

would like to report an issue with caldav subscription in beta channel:

  • startet with a fresh TB beta (90.0b2) install; no plugins installed
  • want to add caldav subscription (mailbox.org caldav address) with add caldendar -> network -> dialog with username and hostname filled with data
  • after button search calendar, second window opend grayed out and thunderbird freezes

Hope this basic feature works when beta gets into production.

Many thanks for your great work; love TB!!!

Best wishes,
Johannes