Well, finally pulled the trigger on a new Eclipse to replace my (still going strong) 13 years old Beovision 7 - before/after photos and more later when everything is up and running 100%. After a week with this new lovely I am very pleased with the Beovision feeling and the overall package. Running only 2 video sources: ATV4K and 4K blu-ray player all works perfectly. Beolabs 9 front and Beolabs 4000 rear.

Now the problems:
1. When turning on TuneIn the system comes alive and sometimes no sound and at other times only sound for 1/2 a second. Another press on the Music/TuneIn button on Beoremote One and sound comes alive. The second press can be after 30 seconds or 2 minutes, no difference. Buffer set to 5 seconds. 
2. When playing music through Airplay from iPhone, I can tick either or all of my 2 M5's or Beosound 1 and music is playing as it should. When ticking Eclipse in the Apple Music menu no sound from the Eclipse, if the Eclipse is in standby or a video source is playing - the screen says Airplay, but no sound. Sometimes I have to untick / tick Eclipse in Apple Music menu once or twice, sometimes several times before sound. Most times Airplay works right away if TuneIn is on and replaced by Airplay.
For both issues I have tried both speaker settings as start (opstart) and 2.0,  but no difference. 

My only music source now is Apple Music which have worked flawlessly for the past couple of years on the M5'S and BS1 (along with BS5/BM5 linked with BV7) and they still do - so the Eclipse seems the be the troublemaker. Both wired and wireless was initially set up on the Eclipse - now I have removed wireless to see if double networking could cause some conflict, but no difference at all...

I really hope that it is just a settings thing, and really appreciate any help.

Cheers D