Done some more testing and I currently wanting to use 4 inputs and 2 have ~ 5.5V and 2 have ~12V.
I have all the jumpers set to the writing side as per instructions.
If I have inputs connected to 1 and 2 with both ground to P02 with 5.5V they work fine and detect correctly.
If I then have additional inputs connected to what appears to be anything else and P01 with 12V they are also detected correctly.
However if I reboot with Fhem then I don't get any inputs working until I disconnected the grounds from P01 or P02 and then reconnect and all appear to detect input correctly. This also appears to fix 7 and 8 displaying ???
If I try using Evok on a different build then it correctly detects them all without any wiring changes so something software based is happening in the Fhem configuration.
However I am new to Fhem so trying to figure out what is causing this repeatable behaviour.
Any ideas? Also are 5 and higher inputs supposed to be green LEDS ?
Thanks for your help