Screenshots on second monitor are blank

[jzetterman]

I have two monitors, one is a 48" in landscape and the other is a 31" vertical layout. Screenshots on the landscape monitor are fine, but any screenshots I try to take on the second monitor in the vertical layout are just a white image. The vertical monitor is also exhibiting the same behavior described in issue #46 even though the screenshot tool is opened on the main (horizontal) monitor. Screenshot attached

[mitchmindtree]

Can confirm I'm also seeing this behaviour, using nix-comsic at this commit.