Hi Teacee,
this seems to be a general issue between HALion and the Akai MPC software. I found reports (Akai MPC Forums - Halion4 ? : MPC Studio, MPC Touch & MPC Renaissance) about HALion 4 crashing with the Akai MPC software as well, perhaps because of the resizeable windows or the amount of MIDI /Audio In- and Outputs. I assume that the developer at Akai added a filter to prevent HALion 5 to load in the MPC software which doesn’t work for HALion 6 anymore.
However! I contacted Akai to send me a MPC with the software on loan to investigate the cause. I’m waiting for a reply!
best regards
Gerrit Junge