everything seems to work well until takeoff. After departure responds to my check-in after takeoff, I never hear from them fir the rest of the flight.

I had this just now.... And I noticed that after the taxi, the tower told me to "Advice when ready for departure"    .

Im not good at the pilot talk, so i use the speech assistant.
Last time I responded with an option somewhere in the departure list.   Forgot the exact on.   Something like Ready for departure runway one one.
After that I got clearance but no further communication the whole flight.

This time i responded with "Ready for departure"   I just spoke it into my mic. 
   .  And now the atc did hand me over to centre.  And it worked the rest of the flight!

 

Maybe this is your issue as well.