I have the MBHP_CORE_STM32F4 ready with the board, no MIDI_IO, no CS yet (Wilba's CS board is on the way).   Board is powered via USB, LCD power jumper is on 5V.   The LCD's I try to connect are Raystar 40x2 OLED LCD's, the same   When I connect them both, I get random characters/dots. If I connect only one of them, no matter which slot (J15A/B), they display the appropriate content (left/right display stuff).    I tried swapping displays and cables, all is fine, it's just that they don