My experience with TP4, is that it is much more stable than TP3.
But I loaded a rockobject, set the scales to 10,10,10.
Created a PF V3, with Lead-in-scale 1 and displacement amplitude 1.
Assigned this shared to Rocks default shader displacement function.
Then just PUF!
Someone else is having similar problems with the Default Shader. Not sure what's going on.
When you say "puf", I assume you mean it crashed? Did it give you any specific error message? Can you try the same Powerfractal in the colour input?
Orry I can't replicate the error. Must be my fault.
Ok, but let us know if you come across it again. Thanks. :)