Bevel Operation/Shading Problem Im making a guitar slanted guitar cabinet. Im having some weird bevel issues shown below.

The corners have a weird shading issue. This is whats happening at the corners:

I can kind of fix it by unchecking &quot;loop slide&quot; in the bevel operator, and i get this result: 
It fixes most of the problem, but there is still a corner with weird shading.
My normals are all blue, no extra verts and scale is 1.000. No clue whats going on.
I added a basic cube and added an edge loop in the middle, then pulled one side back and still got the same thing:

Any ideas why this is happening? Thanks!
EDIT: i turned the bevel shape to 0.900 and the 2 effected corners are exaggerated. Why are just those 2 corners not beveling right?

I have recalculated the normals too and they are fine. I have started from scratch and then i get different results as to which corners have the &quot;bad&quot; shading
I can't point out the exact issue without the blend file. My best guess is that you should check the harden normals checkbox in the bevel or use the weighted normals modifier.