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Day or Week calendar view no longer works

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  • Last reply by avmo

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Since 16 July 2017, my calendar shows all entries (appointments) at 00:00 in the day and week view. In the sidebar, entries still include the times, so does the entries when I click and open them. The problem occurs on both computers with macOS Sierra 10.12.5 and Thunderbird 52.2.1 with Lightning 5.4. The problem appeared overnight. I changed nothing in the settings. First on one computer, the next day on the second computer although I had blocked the automatic update on Thunderbird and still had an older version.

Since 16 July 2017, my calendar shows all entries (appointments) at 00:00 in the day and week view. In the sidebar, entries still include the times, so does the entries when I click and open them. The problem occurs on both computers with macOS Sierra 10.12.5 and Thunderbird 52.2.1 with Lightning 5.4. The problem appeared overnight. I changed nothing in the settings. First on one computer, the next day on the second computer although I had blocked the automatic update on Thunderbird and still had an older version.
Attached screenshots

Modified by avmo

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Here is a screenshot of the week-view