Exporting assets adds transparent borders
I have several 48px x 48px simple icons set up in 6 different artboards. I select each icon and collect for export. The size of the resulting PNG should be 48px x 48px but it's not.
All of the icons have a square shape with rounded corners (48px square with 5px radius corners). However, the exports are somewhere between 101-104 px x 101 -104 px and never square. I have fit all the artwork to be pixel perfect and it still messes up.
I do have a layer that applies an SVG blur to the center icon as a secondary fill, but it is well within the bounds of the icon background.
Below is a screenshot of my individual artboards for each icon, and my asset panel.
I'll try a couple of different ways, but this just seems really odd.

