This part is contradictory
Feels like the rear braked is hydro locking and prevents pressure to the front.

Bleeding fron brakes is eaay and normal. Pedal will bottom out when pressure bled.
When bleeding the rears I noticed that the pedal not will bottom out but stop where it stops when all is bled, about half way through total travel.


If you bleed off the fronts and it goes to the floor, but bleeding the backs it stops, then it must be the fronts causing this not the rears.

Eitherway, I might put it up on stands on all 4 coroners, and have a friend hold down the pedal and see if any of the brakes act differently. being able to move around without changing anything should let you see if something is off.