Have someone take a look at your squat technique.
You could have reached tissue tolerance for the deviations in technique.
IT Band stuff can originate at the hip and just below.
Are you addressing the area which is bothering you or the IT Band?
Episode 61: IT Band Hell, And Help…
Episode 142: Tight IT Band and Hip Flexor Fix: Runners?
Pro Episode # 35 – MWod Pro-User Request Friday: The IT Band Primer
Monday January 9,2017 IT Band
Thursday, April 6th, 2017 – Hips This hits the outside you mentioned