[puenktchen]

The little green clock icon for enabled pvr schedules is missing in all kind of list views here.

Strange, it shows up fine here.
What version of the skin and Kodi are you using ?
Stable Jarvis version ?

EDIT: Sorry, I was testing it on Isengard. On Jarvis it is indeed missing in the timers listing.
It does show up in the guide. Can you confirm ?

Yes, in the guide there is the green clock for one time schedules and red dots for series schedules on Jarvis beta.