Just tested it and the new version works. The large event with 1872 attendees is now imported.
Is is so large that the calendar app takes several seconds to load it.
Davdroid fails since Android 7.1
I upgraded to Android 7.1 today and since then DavDroid fails to synchronize with NextCloud. Here’s my debug log: https://git.project-insanity.org/snippets/10
This is not related to updating Android. Please follow up at https://forums.bitfire.at/topic/1259/rev-must-not-appear-more-than-once-in-a-vcard-component/