After serveral days of testing I can confirm: the patch for bug 827078 solves the problem!
Great Job - Thanx!!!! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1082100 Title: [REGRESSION] Unable to modify CalDAV items ("this.mItemInfoCache[aNewItem.id] is undefined") To manage notifications about this bug go to: https://bugs.launchpad.net/lightning-extension/+bug/1082100/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs