If I only run campaigns, the UI does not appear as it should.

[narohous]

It only appears like that when I run the campaign, and even when I press ESC to start the game, the radio UI is not visible and the ESC menu does not appear, making normal gameplay impossible.

It happens in all types of campaigns, not just one specific campaign.

Trying again after performing an integrity check and updating the graphics card driver does not resolve the issue.

[rob10]

Set your GUI scaling back to 1 and you should be back to normal.