When using 7.14.8 in Windows, the raytrace functions fail after editing a solid or region. The raytracer (rt, nirt) works perfectly fine up until the point something is edited, whether it be a solid or booleans within a region. After that, a "Raytrace Failed" message appears when trying an "rt" or an "nirt" command. This has occurred on several of our machines which probably means its not computer specific or path related. The only fix is to shut down the model and re-open which is quite annoying. Has anyone else seen this error? I sometimes get frustrated and revert back to 7.12.6.