TbSync calendar not updating when single meeting in series changed (by original meeting owner)

[cbf123]

Your environment

TbSync version: 4.3 (Oct 15, 2022)
EAS-4-TbSync version: 4.4 (March 22, 2023)
Thunderbird version: 102.13.0 (32-bit)

Expected behavior

I am an invited person on a long-running meeting series. If the organizer of the meeting series changes the time of one of the meetings in the series, TbSync should sync the calendar and pick up the new meeting time for that particular event.

Actual behavior

TbSync still shows the calendar is synced but the new time does not show up in the calendar in Thunderbird. If I view my calendar through the Outlook web interface or desktop application it shows the new time.

Steps to reproduce

Not entirely sure. It has happened to me multiple times when the meeting organizer has changed a meeting time.

[dbrandsude]

It is the same for me

[dbrandsude]

Additional comment: I have set the sync interval to 2min. Then I see after the acceptance of the change of the one meeting as additional item in the calendar (beside the original), but after the sync it has been gone and only the original item (with the time of the whole series) is showing up.