Hey there, just double-checked and confirmed it works for the current versions of Microsoft (44.0.3719) Chrome (145.0.7632.68) and DuckDuckGo (145.8), so if browser-related I'd definitely recommend using one of those three and updating before trying again. 🍤🍤
FireFox is a browser we haven't tested - we'll have to look more into why it has compatibility issues. In the meantime, I'd recommend trying the tested browsers mentioned by the rest of the team. Tanaka-san is waiting to see what you've got!