With my custom Team Builder dynasty, before the Aug. 8 update, I could always - for whatever reason, 100% of the time - click into my game matchup once and only see the original uniforms. If I backed out of the matchup (back to the dynasty hub, not exiting the entire dynasty) and clicked the game again, my recently downloaded updated uniforms would appear, replacing the old ones, and then be good to go for the game. After the Aug. 8 update, that workaround hasn't worked.
It's nice to see that the overwritten new uniforms were usable, but I'd just love for the overwriting to work by default. I only made two relatively simple uniforms in my first build and I'd create more alternates/make more edits if I knew my team could consistently use them in dynasty.
I also selected an off-white color as my primary, which renders much of the white text in the game illegible, and it wasn't clear to me at the time that the stadium's mascot would come with the stadium of the team you selected. Another thing I'd love to edit!