drum MIDI should always play back as (somewhat) expected whether you run MIDI included with an SDX together with an EZX or the other way around.
That said, there are some rare libraries, like e.g. the Orchestral Percussion SDX, the Latin Cuban Percussion EZX or the Electronic EZX that have included MIDI that sounds great with its library but perhaps not as expected with a drum library expansion.
Which grooves exactly are you trying to use with which library and Preset?
the only ones that can help you with this is Toontrack Support, so if they ask you to provide more information to securely connect your account with your products, that’s the only way, I’m afraid.
The order #, your personal details like adress and email and a copy of the receipt with serial number(s) usually suffice.
Get all the latest on new releases, updates and offers directly to your inbox.
Note: By clicking the 'I WANT IN' button, you will not be creating a Toontrack user account. You will only sign up to get our newsletters, offers and promotions to your inbox. You can unsubscribe at any time from a link at the bottom of each email. If you want to learn more about our privacy policy, please find detailed information here.