This is either a small bug or a glitch but about 75% of the time I test out a new game dev I am not able to click on a small area in the level(usually in the bottom middle but it has happened other places). This is mainly a problem because when the goal is in that spot my hero is not able to move there without improvising and going through a long process. This is sometimes fixed when reloading the browser but when I do reload it the spot moves to a different part of the screen.
The only possibilities I have found is that it is a bug and is somehow fixed when it is published but it is really annoying.