"Outer Worlds" on Steam Deck - cutscenes show black

hello! having some trouble getting The Outer Worlds working properly on my Steam Deck OLED. no matter which settings i toggle or which version of Proton i try, the cutscenes do not work properly and only show a black screen. i would like to fix this if possible.

i found this reddit post which describes my exact problem: https://www.reddit.com/r/SteamDeck/comments/vsuyf0/cutscenes_not_working_on_outer_worlds_through/
someone suggested using GE-Proton7-17 to run the game, but sadly i can't find that version in Heroic's download list. (maybe because it's too old?)
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