I’m still unable to reproduce the error message you posted.
I would like to confirm that I also ran launcherHetNet using a freshly downloaded copy of the new release, and I did not encounter any problem.
Do you get the same error message when running all launcher files? Or are you able to run some of the launcher files successfully?
Also, just to check, do you run the launcher file while in the root directory (where simulate.m is) or in another directory?