Test complete throw an error as process crashed during test run and test fail

Hello all !

I'm facing a problem in the script after closing the application by (File->exit ) during regression run  , Test Complete logs an error message saying "  Spotfire.Dxp.exe  process crashed" so some test cases fail , 

I used Sys.WaitProcess  after closing the application  to check if process if exist or not in task manager or in background ,so if process exist it will wait until process disappear from task manager to complete next test  , but  during this check for this process  test complete throw an error  " Spotfire.Dxp.exe  process crashed"  .

so what's  the reason for this crash ? 

Thanks .