System: UniPi Neuron M503 with Neuron Extension xS10
Coming from UniPian-Neuron-OS-2018-02-16.img where everything (access to all ports of Group 1 and 2 from M503 and all ports of xS10) worked fine i flashed the image UniPian-Neuron-OS-2018-03-16-BETA.img.
From now on only Group 1 from M503 is accessible. Group 2 and the Ports from the extension disappeared.
After this i tried UniPian-Neuron-OS-2018-03-09.img
Same behavior... only Group 1
Then i tried standard Raspbian stretch with install script ... same
At last i went back to UniPian-Neuron-OS-2018-02-16.img but no change.
It seems that the communication between the modules broke down.
How can i put this back to normal operation.