Tvheadend

Hi there,

i am using tvheadend 3.9.2496 with openelec 5.0.3 on raspberry pi 2.

I activated "periodic save epg to disc" every 3 hours.
The file is growing up to ~ 46 MB, but if i restart my pi,
no epg data is saved and i have to start a new epg scan every time.

What is the problem here ?

Greetz Tommy