Given an object:
where the Corner tool cannot find corners to round:
one can use the “Filet All” tool if one wishes to round all corners:
Note that it leaves the original geometry in place:
so select and delete it and re-assign tabs and toolpaths if need be.
This did the trick. Thank you so much for your help. I knew it had to be easier than I was trying to make it. I really appreciate you taking the time to help me out!