I tried to Re-Translate but the changes/edits I made aren’t showing up in the translation(s).

First, ensure that all changes/edits are made on the source material itself (i.e. original version/language of your module). Next, if you are re-translating whilst preserving previous user-made language refinements (i.e. Overwrite User Edits unchecked), add a new screen of the same type, then, copy and paste the entire edited content onto the new screen before hitting Re-Translate (Overwrite User Edits unchecked).