How are you connecting the MPC to the EYESY: USB-MIDI or TRS-MIDI?
I’m using TRS-MIDI.
Are you using a TRS-MIDI Type ‘A’ adapter? Type ‘B’ adapters will not work with the EYESY. Have you tried another MIDI cable, just to rule out a bad cable?
What OS version do you have running on your EYESY?..it is listed at the bottom of the OSD.