Hello everyone, I feel very dumb now.
For some reasons, maybe I messed up something, when I press Alt+Shift+ ← / → doesn’t shorten (or increase values) like the grid on the bottom left of the screen but some random value… what did I do?
What value does it increase by? We need a little more info.
Also, what are you trying to lengthen exactly?
Some elements will jump to the next note rather than in grid values.
Usually, by additionally holding cmd you can force them to use the grid.