What is the problem?
When I connect to printer via octoprint on my RPİ3B+ I get this message and it disconnects.
But I can connect and control through usb. Also printer board is MKS GEN v1.4, octroprint version 1.5.2.
What did you already try to solve it?
Started raspberry pi and printer in different orders, plug unplugged usb cable.
Have you tried running in safe mode?
It is the same here too.
Did running in safe mode solve the problem?
Additional information about your setup
OctoPrint version 1.5.2, OctoPi version 0.17.0, MKS GEN V1.4 dual extruder