I'm having trouble saving out a 32px x 32px PNG favicon. (it saves out as 33px x 32px?!)

Hi everyone.

I can't believe I'm having such a hard time with this... but for some reason, I can't save out a 32px X 32px favicon image from Illustrator.

I've tried exporting it several ways:

1. export as - PNG

2. asset export window - PNG

3. even tried it was JPG (even though I need a PNG)

- and each time the file size (in mac finder) lists it as 33px X 32px!

WHY IS THIS?

This favicon is for my Webflow website... and Webflow requires the favicon to be exactly 32px X 32px - needless to say I'm unable to use my favicon for my website.