Editor Blank Map

[Muerthogar]

I don't know why but my map is completely blank when I open it in the preview. Am I not doing something that I should be doing?
Here's an image of the blank map (I'm suppose to be in the center of the map): http://i.imgur.com/rFCLnhs.jpg

[Doridion]

Is your map be blanck without moving ? If yes, it's normal, map discover when you walk near walls, blockers, statues, doors, etc. If no, yep, it's a bug Try to "clear" ( button at the right of the start preview ) and give us results.

[Muerthogar]

Ok, it was my mistake . I don't know why, but when I have the preview in window mode it doesn't show the map, but when I press F to make it full screen, it works. Thanks for your help anyway ^^