[SOLVED]ScreenCapture.CaptureScreenshot with super sampling is simply scaling up lower resolution UI

I am trying to use the super sampling feature of ScreenCapture.CaptureScreenshot(). I am having a problem where all UI elements look like they are being captured at the current resolution and scaled up (so the images/text are very blocky). 2d sprites and 3d objects work fine.

Here is the code I am using:

Code (CSharp):

1. ScreenCapture.CaptureScreenshot("Assets/Image.png", 6);

Here is an example of the result. Same sprite, on the left it is shown with a UI Image, and the right is a 2d sprite renderer:
https://imgur.com/a/SVYH0

Any ideas on how I can make supersampling work with UI? If not, does anyone know if one of the plugins for taking screenshots allows for supersampling of UI?

 

So, of course, I figure out a solution as soon as I post. I just setup a resolution preset in the dropdown at the top of the game window with the target resolution I want to capture and take the the screenshot without supersampling.

It wouldn't be a solution in a build, so there may be an issue here still. I'll submit a bug report.