Pluto does not autocomplete

Hi, I do not know what am I doing wrong, cause every IDE (VScode, Atom, Jupyter) I have installed does the usual autocompletion work, but not Pluto. Besides this issue, everything seems to be working fine with Pluto. What do I need to do? Thanks.

@fonsp solved this. I had a problem with the customization of my keyboard.

can you elaborate, for posterity

@jling stupid things should never be allowed in posters. But in case someone suffers from the same problem as I, one can find further details here.