After updating to spyder 6.0.4 from 6.0.3, changing the run configuration for a file to "External Terminal" will not apply until after a reboot. This does not apply to changing back to "IPython ...

The debugger can only request to run something in a terminal with a given title (and you can specify that title in launch.json by setting "consoleTitle", if you don't like the default "Python Debug ...