Similar behavior on my Prime 4 over LAN. Update from 2.3. to 2.3.1 is not possible. Download and install process starts as usual but doesn’t reboot or the update message appears again. Tried 3 times. But 2.3.1 will not be recognized. The incompatible drive message is back again too.
Ok … I understand but after a week I still have no answer for my Problem and I’m still using my prime 4 with 2.2.2 software instead of using it with 2.3.1 
Hi, does this version of engine support the MCX8000 controller? I recently installed a newer (not sure if this one though) version to find that it doesn’t support the MCX8000 so had to downgrade the engine software to an older version, running Windows 10.