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Thunderbird Version 91.6.1 (64-bit), calendar - Error code; MODIFICATION_FAILED.jpg

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  • Last reply by miker206wa

miker206wa
miker206wa
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I made a change to an every-day reminder and saved the change. This resulted in _lots_ of occurrences of this reminder (? going back the the date it was first created ?). With one 'Dismiss' click, the mass of them disappeared. But one remained. And this morning I had another one, which dismissed normally. But I can't 'Dismiss' this one. I even tried Editing & Deleting it, but that didn't help. This error has occurred occasionally before. Maybe, in time, it will go away ... or not ... or come back. Annoying! HELP!!

I made a change to an every-day reminder and saved the change. This resulted in _lots_ of occurrences of this reminder (? going back the the date it was first created ?). With one 'Dismiss' click, the mass of them disappeared. But one remained. And this morning I had another one, which dismissed normally. But I can't 'Dismiss' this one. I even tried Editing & Deleting it, but that didn't help. This error has occurred occasionally before. Maybe, in time, it will go away ... or not ... or come back. Annoying! HELP!!
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Chosen solution

I shut down & restarted Thunderbird, checked Reminders, and clicked "Dismiss" on the problem reminder ... and it went away _without_ the error message :-) I hope it doesn't come back.

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miker206wa
miker206wa Question owner
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Chosen Solution

I shut down & restarted Thunderbird, checked Reminders, and clicked "Dismiss" on the problem reminder ... and it went away _without_ the error message :-) I hope it doesn't come back.