FYI, this error shows up every time the program launches (screenshot attached-using Windows 10).
So 18.104.22.168 is supposed to be 'Final' but I still see the error mentioned above every time I open the program. Just letting you know.
22.214.171.124 was the first release after we finalized the Beta. However, we didn't get this error fixed until 126.96.36.199 which is available on the website or within the automatic updater when you open StruCalc.