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Calendar in Thunderbird

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Michael Lynch
Michael Lynch
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Whenever I try to delete or edit single instances of a recurring event in Thunderbird, it looks like it is gone, but if I close and reopen Thunderbird, it reappears. This happened only recently. I am using Thunderbird 115.11.0 in Linux Ubuntu 24.04. Please advise.

Whenever I try to delete or edit single instances of a recurring event in Thunderbird, it looks like it is gone, but if I close and reopen Thunderbird, it reappears. This happened only recently. I am using Thunderbird 115.11.0 in Linux Ubuntu 24.04. Please advise.