If PYTHA 19.0 is having trouble opening any file using

  • File>Open or
  • File>Import or
  • Drag & Drop
and it automatically closes PYTHA down

Do the following
  1. Make sure PYTHA 19 is closed.
  2. Save the attached file into your My Documents/PYTHA19.0 folder overwriting the existing file.
  3. Then Open PYTHA, do not load any drawings and close it.
  4. The next time you open PYTHA you should be able to open a file.