Error Msg - Sapphire Edge Aware Blur raised and error during render - NukeX 11.3v3

Looking for some clues as to what’s causing this - would like to know if there are any logs I can look at and where to find them.

Rendering heavyish Nuke Script 4KUHD, MacPro 2013 8 Core Xeon, 2x D700 6144Mb 64GB Ram Sierra 10.12.6

First step is always to turn off GPU (you can use the checkbox in the help dialog… or is it the “about” dialog?) for each effect to see if that fixes the problem.