The program does not terminate

[Pete]

In terms of forcefully having to terminate a QB64 exe, I have had that 'randomly' happen in many versions of QB64 on rare occasions, but never consistently. On rare occasions of a SHELL process hanging, I've had to use _DONTWAIT and add a delay. If a developer can reproduce your results, from the working version to the latest version, hopefully going backwards in the build can spot whatever it is that is causing the program to run differently.

Pete