UPDATE: Nevermind, figured it out. Once you touch canvas or layer the selection takes effect and blue outline goes away. Not sure what the purpose of it is in the first place. -Novice PS user.
Does anyone know how to turn off the blue outline that appears after changing a layer mode or brush selection? This never used to happen and is rather annoying. Everytime I make a selection, a blue outline appears and I have to confirm the selection by hitting enter for the selection to take effect. It adds an unnecesary step to the workflow. Thanks.