Hi
I have no knowledge of Ezdrumer.

But if it is midi based and uses Chanel 10 to play custom drum kits.
Then you will use up ch10 with the first instance , you cant use ch 10 twice unless you have another midi port of 16 channels.

Mike


BIAB2021 UltraPlus,AsusN55S1Tbssd, W10/64,Akai EIEpro
Yamaha CVP405,SquireStrat, CoolsoftVMidSynth
Novatation Impulse61 Ctr kbd, Cwalk blab Kontakt

http://mikesmusic.byethost16.com/