Hi,
for everyone who reads all of this, forget about the last few posts.
I don't know why it works even when the Interrups are masked out on the radio, but it works now.
The error I had occured because of the config of the OrangePi-Gateway.
I removed:
--extra-cxxflags="-DMY_RF24_DATARATE=\(RF24_250KBPS\) -DMY_RF24_BASE_RADIO_ID=\(0x00,0xFC,0xE1,0xA8,0xA8\) -DMY_DEBUG_VERBOSE_RF24"
and wrote:
--extra-cxxflags="-DMY_RF24_DATARATE=\(RF24_250KBPS\) -DMY_DEBUG_VERBOSE_RF24"
Now I think I have an working OrangePi-Gateway without signing but with interrupt enabled.
If there are new problems I will come back here.
The next step for me is to activate signing again and bring the node into homeassistant.