In hindsight, when did Bruce likely start having issues with his health?
I mean, there were for years leading up to that point, discussions online (on places like Reddit and the IMDb message boards) about how Bruce Willis in his later years, was "phoning in" (and no longer feeling engaged and giving 100%) his performances.
https://www.reddit.com/r/movies/comments/lag3qr/when_did_bruce_willis_loss_his_passion_for_movies/
https://www.reddit.com/r/movies/comments/omtfy1/whats_the_deal_with_bruce_willis_phoning_in_movies/
https://www.reddit.com/r/movies/comments/ldnj37/when_is_the_last_time_that_bruce_willis_tried/
https://www.reddit.com/r/TrueFilm/comments/sn23wt/why_do_you_think_bruce_willis_has_essentially/
https://www.neogaf.com/threads/movies-where-actors-just-phoned-it-in.779900/page-2