Hello, I just wanted to say that I have found a quite peculiar bug in the Snap! editor. If you were to create a variable named "i" and you change the name of that variable to " " (a space), then the variable will glitch causing the variable to show on the screen even when deleted. Also, if you do this a second time, it will cause the shown " " variable to duplicate itself on the screen whenever you try to drag it. This glitch also seems to save into the project data itself so that you can only "un-glitch" your screen by creating an entirely new project. I don't actually know what is causing this weird bug, but I'd be grateful if you could take a look. Thanks. 
So don't change the variable to a space in the 1st place
Also attempting to delete a variable " " shows "close" instead
Clicking its checkmark just adds another variable monitor but not checked.
What's causing this?
a variable named ' ' makes the editor think the variable does not exist, therefore creating a new watcher every time the box is ticked.
thanks for the report. I've fixed this bug for the next release.
Thank you. 