Brand not showing up on all of my listings

Been dealing with this since my brand waiver approval. Some listings my brand name shows up while most still say “generic”. The really annoying part about this is if I want to edit the listing I can’t do so because it says my brand isn’t correct for that ASIN even though the brand suggested is the brand name I’m using. So this will not allow me to save an edited listing. On top of this issue my sales have fallen drastically and now I’m curious if that’s why. Could support please step in and lend some advice on how to fix this brand name issue, please? Thanks in advance for any help!