DataGrip interprets keypresses with modifiers differently from WebStorm

I tried settings Column Selection Mode on/off from the keyboard in DataGrip, but could not get it to work. It does work in WebStorm however, and I did check that the keys are mapped similarly.

I then tried using the "Find Shortcut" functionality, and this is what WebStorm gives me when I press Shift + CMD + 8 on my Mac:

And when I press the exact same keys in DataGrip this is what it gives me:

So DataGrip seems to interpret the keys with modifiers differently. I also tried PhpStorm and it gave similar results as DataGrip. For some reason WebStorm is the only one that seems to work "correctly", why could this be?

I'm using a Finnish keyboard if that makes a difference.