For some reason bevel is not coming out symmetric as you can see below
but when I select more edges it bevels straight across.
any ideas why the first case is coming out lopsided?
I checked for extra geometry, and the scale. Both sides are symmetric down to .0001 prior to the bevel, so I am confused why its so warped.
Looks like its actually a bug. You can reproduce it from the default cube as shown in this blend file. https://blend-exchange.giantcowfilms.com/b/6763/
reported it to blender developers. First time discovering a reproducible bug.