(In reply to <email address hidden> from comment #81)
> **Note 2: Also installed clean TB 91.2.0 and when I tried to import .ics calendar, it appeared to just stall on "loading items" - see screenshot. Only took seconds in 78.13. Should I wait longer? Why will it not import the .ics? (exported in this format from TB)**
That is likely due to Bug 1727938 where calendar failed to import because it contains tasks.
(In reply to <email address hidden> from comment #81)
> **Note 2: Also installed clean TB 91.2.0 and when I tried to import .ics calendar, it appeared to just stall on "loading items" - see screenshot. Only took seconds in 78.13. Should I wait longer? Why will it not import the .ics? (exported in this format from TB)**
That is likely due to Bug 1727938 where calendar failed to import because it contains tasks.