When designing unknown sections with notches, if the section examined for design does not pass the restrictions based on maximum notch depth, but earlier ones did, the program crashed. This happened despite the fact that larger sections will not violate the notch restrictions if smaller ones didn't, because the program proceeds to examine shallower sections that are wider, and sections made from different materials.
For this reason, this problem occurred intermittently, for example inputting ¼” as the notch depth is fine, inputting 3" causes a crash, and inputting 6" results in a message that it cannot find a section, which was correct given the notch restrictions.
This has been corrected.