Here's some more info I have: Logic 9.1.6, PLAY 3.0.32, VEPro 5.0.10309, HD.
8 instances of PLAY in VEPro slave, ~13-15 instruments per instance (some have less though). Sounds play back fine when Logic is stopped (occasionally there are hanging notes), as soon as I hit play or record in Logic, everything in VEPro goes dead and is unresponsive. Only Logic plugins sound. Have to force quit VEPro. I'm not sure what more info I can provide, happy to though if there's anything else I can give.