After my python flask app crushed without exiting, I tried using ctrl-C to stop it, instead of exiting the app I got ^C and for any other signal I tried via my keyboard as well, only control characters, as can be seen below:

To stop the process I had to open the best Linux terminal and send a kill signal from there.
This wasn't the first time I encounter this, What is causing this?
Is there a way to kill the process from within?

To stop the process I had to open the best Linux terminal and send a kill signal from there.
This wasn't the first time I encounter this, What is causing this?
Is there a way to kill the process from within?