When using the Trapcode suite of plug-ins together with GridIron Nucleo on Mac OSX, some users have reported that the license magically dissapears in renders, so that the "demo-X" (the red cross that indicates the plug-in is not licensed) appears, most of the times on every other frame (dual CPU) or every fourth frame (Quad CPU). No such problems have been reported with the Windows versions.

Here are public betas of new versions of the Trapcode suite plugs that should fix the above mentioned problem (nothing else has changed): Trapcode / Nucleo Betas for Mac OSX