Hey there,
Don't know if this is a known bug or if there is a fix in the works for it, but multi-out instances of Kontakt don't seem to register with VEP6 properly after stereo channels 25/26. The outs are assigned correctly in Kontakt and registering key hits, but nothing is registering on VEP6 Master Bus 14 (stereo out 27/28). Any updates on a fix for this would be greatly appreciated!
(edit: Seems it's not isolated to outs 27/28...just loaded multiple instruments into an instance of Kontakt that had 13 stereo outs (the final stereo pair was 25/26) and the final instance had the same issue as above.)