Can't run piCorePlayer with my precautions on Raspi

Hi together,

i'm a big fan of the piCorePlayer concept, which allows you to run an all-around worry-free music player on the Raspi.

I downloaded the pcP image and got it working, the LMS also runs well and I can address the headphone jack and various DLNA devices.

The basic configuration is as follows:

- Raspi3
- no modifications
- Operation in LAN (no WLan)

Now I would like to play music on these destinations from iOS devices as well. I have enabled the ShareTunes plugin in various setups both in the LMS and in pcP itself, but I just can't get a stable situation. Sometimes the audio events arrive at the destination, but often they don't.

Setups:
Shairport-sync on pcPlayer off, Shairtunes on LMS on
Shairport-sync on pcPlayer on, Shairtunes on LMS off
Shairport-sync on pcPlayer on, Shairtunes on LMS on


Sometimes the AirPlay destinations show up on the iOS devices, sometimes they don't. Sometimes when the playback works the audio drops away for seconds.

I also can't find a method to return to correct function when there are malfunctions. Restarting does not bring any improvement. Wildly configuring it around doesn't either.

- How should I choose the configuration to make it work?
- what is the best way (logs, etc.) to find out what the problem is?

Best regards
SBachstelz