"invalid date-time value" after importing events from ical

[DanNixon]

After importing some iCal events I find that I get several instances of this error in the "Errors" list, and am no longer able to open the collection (menu > Collections > affected calendar) for the affected calendar (the calendar view itself continues to work, just without the events in question).

Every other iCal import I have done has worked, it is just two specific files that seem to cause a problem.

Full error when trying to access the collection is:

Something went wrong!

invalid date-time value: "2024--0-2-T2T::::"

ICAL.Time.fromDateTimeString@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:57189
decorate@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:14586
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get startDate@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:88199
get@https://pim.etesync.com/static/js/main.aaa47d55.chunk.js:1:143263
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cellRangeRenderer@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1137884
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Pa@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1615783
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pA@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1651487
cs@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1642704
As@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1642627
$A@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1639636
Ji/<@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1591021
t.unstable_runWithPriority@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1666602
Ui@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1590730
Ji@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1590968
zi@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1590901
WA@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1636418
da@https://pim.etesync.com/static/js/2.33caf9b7.chunk.js:2:1608138
548/vi/</<@https://pim.etesync.com/static/js/main.aaa47d55.chunk.js:1:256673