Depending on the application you use, some of the features do not work.

JamUp Pro

When the GUI does not work on the application, please launch the application on an iOS device first and then connect the DJM to the iOS device. MIDI assignment to operate the GUI of this application is not available in this application.

Turnado/LIVE FX

Part of the MIDI codes of this DJM and MIDI assignment of this application happens to be equal, resulting in unexpected move of the GUI of the application. Please set the MIDI inactive at the settings of the application.