I’m guessing there’s a bug in the on-submit JavaScript that only shows up in certain environments. Someone more tech-savvy than me might notice something if they inspect the code.
The code's a bit of a mess, but generally looks fine to me. If you visibly have all 3 pieces placed, but still get "error_jumble_missing", it means the DOM state the code relies on probably doesn't match what's on screen. The check in "checkJumble()" returns more than 0.
Do you suppose it could be caused by a browser plugin? Like, the plugin messes with the DOM slightly for reasons of its own, and the code isn’t robust enough to accommodate it.
More info... So, it happened only with the Grammar list, jumble quiz, not sentences or other lists. Only with the laptop and not from the app. The all day of 4th of May, today it seems to be gone. The bug got scared of this thread, I see XD I have no clue on how to check my extesions but I haven't install anything and there were no updates (that I know of).
For future reference to anyone that encounter this issue: just click yes and the system will accept your answer ;)
