Cannot scroll line by line in PyCharm's bash terminal

PyCharm offers the option to use the bash terminal (in File->Setting, like so

Now when I have the bash terminal open while coding in PyCharm, like so

and want to scroll up line by line with the keyboard (in this case to view line by line the output of the previous command, pytest, that I ran that output the error message), I can't, no combination of CTRL, SHIFT, ALT, SUPER, UP, PAGEUP will work (only SHIFT+PAGEUP scrolls up - but by a whole page, not a line, which is too much).

I'm not sure, is this because of bash or because of Pycharm (I'm using Ubuntu (16.04), if that matters).

This issue is really driving me nuts!