@Chutzuttau93 To conclude this topic here the explanation stated this morning in the german-speaking community from @BenjaminS a Swisscom coworker (I tried to translate it):
"On 1.4.2022 blue Prime was replaced by Sky Cinema.
In this process, a channel configuration had to be imported,
which ensures that the content to be saved is retained.
Normally, stored film data is transferred after 2 weeks
from the short-term memory to the long-term memory.
Due to a malfunction that remained undetected for a long time,
this film data was not moved correctly and is no longer available.
available since then.
Unfortunately, the affected recordings can therefore no longer be played.
The error was corrected on 2.6.2022 and all recordings from that date onwards are now
are now saved correctly.
We'd like to apologise for the inconvenience caused"