Okay well this just got - slightly strange......
Before I set off on the long haul through previous HISE commits trying to find one that worked I remembered I made one small change to the way this thing managed dry/wet signals - so I focused on that:
Here is the problem child, this innocent looking script node set up:
09865640-fca2-4054-acca-7ff3f8f4b146-image.png
-- yeah innocuous enough, its using 4 channels - but it works fine - and its set up to compile using 4 channels:
71d14c21-dfb9-4600-8626-8534af56c63a-image.png
So......
*If you compile this and run it in a HardCodedFX module - then it wont crash...
BUT:
if you include the module as is in its uncompiled state - crash every time....
-- so to be clear: runs perfectly in HISE, compiles perfectly - crashes PluginVal and wont load at all in Reaper...