No, you shouldn’t have to. Unless its unable to upgrade in the ui and then it will tell you do use “./launcher rebuild app”.
What browser are you using? Maybe something is cached on the frontend? I can try another fix, but the current fix is already working on other discourse sites so I’m just trying to narrow down what the issues might be.
Can you take a screenshot of your browser with the console open when you open that model? The text file you sent over earlier wasn’t really helpful.