WW Scale mode problem?

Hey there
i was playing around with scale mode, and it seems there’s maybe something wrong with it? i was playing a sequence supposedly in Aeolian, or 6th grade, but i couldn’t play a minor chord over it, it seemed like mixolidian, attached a tuner to the osc and it gave me a Bb (over C) for the 7th, but it plays an E as the third, so it is actually behaving as a Mixolidian scale. Rest seemed ok but once i checked all the modes it started behaving oddly, like getting stuck on the chromatic or the Major scale.

Did anyone had similar experiences?

Hi sorry to bump an old thread like this but I just run into the exact same problem. Diid you fix this successfully? Thanks