how to send ctrl-C/ keyboard interrupt to a remote interpreter

I'm developing in Pycharm on a Raspberry Pi 4 from laptop via SSH. When I hit control-c in the run window, nothing happens. When I hit the Stop button, the program aborts immediately with code 143 without carrying out any "finally:..." blocks, leaving the Raspi in an unclean way  (in contrast to a local interpeter, where a keyboard interrupt is raised. How can I send a keyboard interrupt to a remote interpreter?