How to remove this blue edge selection? I have used bevel, boolean and many modifiers I have forgotten. The problem is the edge and is blue in color. What edge selection is that? I have cleared seams and checked mean crease is 0. So may I know what is this edge select mark in blue and how to remove it?
To fix this follow these steps:


Go into 'Edit Mode' and select all Edges by pressing 'A'
Press 'CTRL + E'
Click 'Clear Sharp'