On Thu, 25 Mar 2021 at 08:28, Uwe Brauer <oub@mat.ucm.es> wrote:
Right, it seems and issue of the OS shortcuts as C-space is for
switching keyboards (US->spanish>etc etc).[1]

Do you know how to change or disable them?

Uwe



Footnotes:
[1]  the same happens on Linux/KDE

On macOS, these shortcuts can be changed in the Keyboard preference panel.

--Diego