Hi amadeus1,
Sorry to hear about these troubles.
I assume that you are using the latest VE PRO version, is that correct?
Which multis are causing the hang (which product)?
Also, go to Options/Memory, turn OFF the "Use Memory Server" option under the "KMS - KONTAKT Memory Server" tab, then turn ON the "Override Instrument's Preload Size" under the "Instrument Preload buffer size" tab.
Multithreading should also be turned off in Kontakt (VE PRO takes care of that).
Best,
Paul
Paul Kopf Head of Product Marketing, Social Media and Support