Manually set recordings fail.


I use the customised software and set some German 19.2 channels to be freesat so they appear on the epg.
I manually set a recording and check that it is on the schedule but they don't happen
The HDR is programmed to switch on between 16:00 & 17:00 each day., the channel happens to be 107 BBC4 HD). The plan was to remotely schedule a recording when I'm away from home but to date I have never done this.
Why do the recordings not happen?