Problems with Split shortcut

I have recently installed 5.12, when I press “s” having selected a region nothing happens (edit point: playhead). I have checked window>keyboard shortcuts, when I look for split there is a “split/separate” option without shortcut, I try to assign “s”, but then it tells me it is already assigned to “region/split-region”, and when I look for that action nothing shows up. I am kinda stuck and can’t remember if it worked before because since I have 5.12 I may have never been editing on it.


Ok, I have rebooted and it is now fine… ?