When Drawing 2D sketch why are constraints being applied when auto constraints are turned off

When drawing a 2D sketch at some point constraints are being applied when “auto constraints” have been turned off.

See attached video

When I attempt to move a rectangle an adjacent rectangle moves at an angle. How can I prevent this from happening? I cannot see any constraints in the side bar.

Thanks

Can you apply the Hz/Vert constraint to the offending rectangle?