Using v1.1.0

Whenever I include even the simplest marker on the map I get this error when the mouse enters the map:

Uncaught TypeError: Cannot read property 'x' of undefined

I'm not sure if it's actually directly breaking anything because the markers still show up, but I could see it causing other wierd behavoir maybe. I'm 'assuming' that this error is related to the "Internal Hover Algorithm". But this is just a guess.