Knobs stay centered and/or faders act inversely.

Update the Laboratory MIDI Control Center to the latest version:
[MAC] http://www.arturia.com/downloads/analoglaboratory/mcc/release/latest/LaboratoryMIDIControlCenterMac.zip
[WIN] http://www.arturia.com/downloads/analoglaboratory/mcc/release/latest/LaboratoryMIDIControlCenterWin.zip
Launch the Laboratory MIDI Control Center
Click on the "Default Values" button, then "Send To Keyboard"
Reboot the keyboard, check all knobs and faders act as they should

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