正式なコメント
Auto Cue is not recognized by the player once it is in MIDI mode, but you can engage the load lock. If AUTO PLAY is off and you allow a track to completely run through, the deck will stop playing but the player is still in "play" mode, another track can be loaded and it will start playing -- even with load lock engaged. We've asked the engineers to change this behaviour or even implement an Auto Cue type function within the software.
If you want to prevent a hot cue from starting playback, enable the GATE mode within the Preferences > Controller > Deck > Hot Cue.