Apple TV doesn't show On status in HomeKit

[dave-el-mono]

Hello, first of all, thanks for this really great plugin, can't live without it anymore.
I've already searched but couldn't find a solution to my problem.

I operate my Apple TV with a projector and an AV-Receiver and have set up an automation, when I start the Apple TV, the projector and AV-Receiver also goes on. everything worked great until.

I recently changed the Apple TV HD to 4k and since then I've had the following problem.

When I turn on the Apple TV with the remote control, the LED that shows it is on is lit, but the status in the HomeKit app shows it is off and the automation is not triggered. But when I turn on the Apple TV in the home app everything works normally.
If I turn on the projector separately, the Apple TV is also displayed as one.

On the other hand, when I turn off the Apple TV with the remote control, everything works as it should and the projector and AV-Receiver switch off. and everything shows up as off in Homekit.

The Apple TV is connected to the projector with an optical-HDMI cable and a TOSLink goes from the projector to the AV receiver.
I am not using other audio output devices than the Apple TV itself.

It seems as if the Apple TV is communicating with the projector and if it is not on, the Apple TV is also turned off.
Which seems very strange to me because the optical-HDMI cable can only communicate in one direction.
I couldn't find anything about it either in the Apple TV or in the projector settings.

hope someone can help me, greetings dave