I got my calendar entries to re-appear after upgrading from 78.14.0 (64-bit) to 91.2.0 (64-bit). Win 10 21H1. On 78.14, I deleted the few tasks I had as per the above remark, and exported the calendar to Home.ics. After the 91.2 upgrade, my Home calendar was empty. I then added a new local calendar Junk1, and then successfully imported the Home.ics file to Junk1. I have only ever used one local calendar (Home) for years now. And yes, I am one of those errant profile file replace folks as I replicate my email from machine to machine (and from Linux to Windows a while back).
I am also now able to add calendar entries to Junk1, and they do not disappear on a Thunderbird exit / reload (as they did before when my Home local calendar had no entries after the 91 upgrade). And add new tasks. Events and tasks added to the Home calendar (when Junk1 is hidden) still disappear on a reload.
If I try to import the same Home.ics file to the empty local Home calendar, the import dialog shows no progress what so ever (stalls) after selecting 'Import All'; and selecting an 'Import Event' also stalls. By stalling, I mean the 'Import All' button becomes washed out, and the progress bar shows no activity. Importing into the Junk1 calendar happened in like 3 seconds. So I don't think it's a performance thing. Also based on watching the memory and CPU activity of Thunderbird in the Task Manager over like 20 min, just in case.
So how do I move all the Junk1 calendar entries back to my local Home calendar please?
I got my calendar entries to re-appear after upgrading from 78.14.0 (64-bit) to 91.2.0 (64-bit). Win 10 21H1. On 78.14, I deleted the few tasks I had as per the above remark, and exported the calendar to Home.ics. After the 91.2 upgrade, my Home calendar was empty. I then added a new local calendar Junk1, and then successfully imported the Home.ics file to Junk1. I have only ever used one local calendar (Home) for years now. And yes, I am one of those errant profile file replace folks as I replicate my email from machine to machine (and from Linux to Windows a while back).
I am also now able to add calendar entries to Junk1, and they do not disappear on a Thunderbird exit / reload (as they did before when my Home local calendar had no entries after the 91 upgrade). And add new tasks. Events and tasks added to the Home calendar (when Junk1 is hidden) still disappear on a reload.
If I try to import the same Home.ics file to the empty local Home calendar, the import dialog shows no progress what so ever (stalls) after selecting 'Import All'; and selecting an 'Import Event' also stalls. By stalling, I mean the 'Import All' button becomes washed out, and the progress bar shows no activity. Importing into the Junk1 calendar happened in like 3 seconds. So I don't think it's a performance thing. Also based on watching the memory and CPU activity of Thunderbird in the Task Manager over like 20 min, just in case.
So how do I move all the Junk1 calendar entries back to my local Home calendar please?