Motor Controller no longer detected

[Sailingclappers]

So I was really doing well, I had connected everything in situ, and after a little work I got the Motor controller trying to drive the auto pilot.  But my solonoid wasn't working. So I jury rigged a manual switch in to test. It worked rudder turned and I was a happy man. Wanting to tidy up my early testing wiring so switched off. And tidied up some of the wiring including splitting the white joining wire.

Ever since I have no Motor Controller error!

Ls -l shows serial0, as the correct one /dev/ttyAMA0 - (against the workbook) 
The motor controller has 4 led's next to each other, no 2 is solid and when the pi starts 4 goes nuts and flashes  like mad.
Web is all working the IMU is remotely and locally reporting and updating.
I am running on a Pi4 with a Pypilot Hat and Seans motor controller.
I am running PYpilot as a service and all are up and runing.
I have tried stopping all the services and running pypilot_servo and get a errno13 permission denied error against the serial port.
I have double and tripple checked wiring.


Can anyone confirm if there is any issue with the ram being on a separate power feed ( they should all be earthed together) but just want to rule it out.

Any help/direction for me to hunt in would be gratefully recieved.


Thanks

James