ESTLCam Oddities?

Has anyone ever experienced ESTLCam running on forever when preparing gcode files (to the point where you force quit the software and try again)? Normally it starts churning on triangles (the is is for ST: conversion - free machining) in the log that presents when programming the gcode file. Today however it started listing Z depths and went on and on forever. I even opened old files which exported just fine and they started going to infinity on me. Is there a preference file I can trash to reset ESTLCam?

It does take a long time on some of my more complex projects. I have to walk away and go sand something. It’s usually done when i come back.