I tried Ektar 120 recently when I bought a Bronica and the 1st
roll was dreadful. I processed it for the normal time at the
normal temperature but it looked to way over developed with
hellish contrast. There was as you describe very blue shadow
areas - not dense shadows that could not be dialed out using
filtration, because then it became overall yellow.  I think it
was a problem of some degree of over development, despite
processing it as per normal which gave rise to 'crossed curves'
(where the three colours develop at different rates, not what
they are designed to) What was also of note was the base colour
of the film was a darkish brown, not orange as I normally get on
other films. The later films were a little better but not
perfect in that respect. Even scanning it was little better and
the roll will stay with me as a reminder what a failure looks
like  The 2nd roll was better when exposed on a dull day and the
third roll also exposed on a day with subdued sunlight wasn't
bad either. I have yet to make