Changed repeating appointments appear twice

[Spielmops]

I use a Caldav calendar from my Nextcloud. This works perfectly so far with the calendar and todo-list app. There is a recurring appointment in my calendar (e.g. garbage collection). If I change one appointment (due to a holiday), only the changed appointment appears in the calendar. But in the todo-list the original appointment and the changed appointment appear.

Spielmops

[yvolk]

Hello @Spielmops
This is a bug of an app that posts event changes to the Android's system "Calendar provider".
Our "ToDo Agenda" app doesn't cache or store any events: it only shows what Android's Calendar Provider gives ("provides") it.
"Calendar" app may use other events source for its presentation (e.g. it can sync with your cloud directly), and this is why that app doesn't have the duplicates.