[noiseboyuk]

I always compose in Cubase, but nevertheless still use VE Pro for orchestral stuff. It's just massively more efficient, so PT isn't alone.

That said, there are some specific issues related to PT and Kontakt. I get system crashes when the RX Connect window is open and I try to load an instrument in Kontakt (same thing in Battery, but those are the only two I've found). NI are aware of the issue. It's likely different to the OP's problem, I merely mention it as there do appear to be AAX-specific gremlins.