Mouse cursor not accurate in ultrawide.

[Miz]

Good day.

I'm playing on a 32:9 monitor and while everything including the UI seems to work just fine at native resolutions, the mouse seems to think it's somewhere else than it is. It works just fine in menus, but on the 'action' field when trying to drag-select my mercs or whatever else, it is clearly interacting with a different part of the screen than it's showing on.

Is this a known problem, and if so, is there a work-around or fix I should be aware of?