Yatse doesn't get online status of LibreElec

I have LibreElec 10.0.2 running on a Raspberry Pi 2.

I can control it with Yatse, but Yatse always says Kodi is offline although it can send commands. I don't get the "playing" information in Yatse with control buttons (Play, Stop, pause etc) which is a bit annoying.

Sometimes I have the impression Yatse can send out to LibreElec, but doesn't receive any information. But then how could I browse the music library if yatse didn't receive the music data?

I think this happens since I updated to 10.x.

Has anybody experienced this too?

In fact they have a faq with a large section for my problem. So that was an easy solution.