Most (possibly all, I should double check) of Mighty Encounters (Unrivaled raid events) have Scale set to 128, both old and current ones. Height and Weight have always been random for raids, except that HOME 3.0.0 introduced the copy height (Scale → Height):
https://github.com/kwsch/PKHeX/pull/3899/commits/c1c36965a662402ea65d5c0aeb9d027e9759474c
Tera Finder also had to be updated to handle this HOME copy height quirk
https://github.com/Manu098vm/Tera-Finder/commit/17286cbbc9df98709857229de3715af5f5d107c0
As examples, we can look at the latest Mighty raid, Tyranitar:
And at the first Mighty raid, Charizard: