@autobodhi could you try it now? I modified slightly the checker function. It will try to load Keychain few times and if it does not success after 5 seconds, you will see the message.
Please make sure to open https://dgoal.app/login and hit Ctrl + R to hard refresh the page (to make sure you'll receive the latest build).
I am kinda guessing what could be happening for you. This is no trivial, of all places this is not something that I would expect to be buggy :D