Fix: Navigate to %LocalAppData%\Avengers\Saved\Config\WindowsNoEditor and delete GameUserSettings.ini . Let the game regenerate it.
Guide :: General Tips for Marvel's Avengers - Steam Community Marvels Avengers The Definitive Edition-RUNE
: Includes the original single-player campaign and all post-launch DLC heroes and missions , such as Kate Bishop, Hawkeye, Black Panther, and Spider-Man (on PlayStation). such as Kate Bishop