Ok, processed another image, and just like clockwork it crashed - screen recorded it this time.....
Here are the steps I took before opening/using the ATW Transform:
1) Dynamic Crop
2) Dynamic Background Extraction
3) Background Neutralization
4) Color Calibration
5) SCNR
6) Duplicate image -> apply histogram to duplicate -> apply duplicate as Mask
7) ATW Transform
8) MultiScaleMedian Transform
9) Histrogram Stetch
10) Extract Luminance Layer -> apply Lum as mask
11) ATW Transform
12) Multiscale Median Transform
13) Create StarMask -> Apply to base image
14) Morphological Transform
15) ATW Transform as seen in Video ...... CRASH
Here is a link to the video:
https://www.dropbox.com/s/72rdd36mhdchypd/pi-atw-crash.mp4?dl=0