Hi Marten,
On Mon, 13 May 2019 17:17:34 +0200, Marten Gajda wrote:
On some devices you can put apps onto the "do not optimize" white list (that's on Samsung devices, in the battery menu). We've received reports that this solves the issue.
On my Samsung A3 I have a setting "unmonitored apps" (apps that won't be suggested to be put to sleep). I've added CalDAVsync and CardDAVsync, maybe it helps.
Thanks for the info!
-- Johan