Please list your system specs and some specifics about the vst-effects you are trying to use. Also, is this a new issue or has it never worked right?
A few general thoughts:
- Maybe mixing 32 and 64 bit vst-plugins/effects is causing an issue?
- Are all the plugins you are trying to use together set to “Run as Administrator” (windows o/s only)?
- You said the EZD2 works good with no added vsts but, do the vst-effects you are trying to add work well on there own too?
Regards 