recurring events disappear on restart

Ck <[email protected]> Mon, 21 Sep 2015 11:38:10 +0200

Newsgroups	gmane.comp.mozilla.devel.calendar
Message-ID	<[email protected]>

Hi,

I am using lightning 4.5a1 and recurring events always disappear after a
restart of thunderbird. I have to reset cache, then they will show up
again.

Does anybody know if there is a work-around, or an existing bug?

Christoph