Map editor black areas

So I have been messing around with map editor. Trying to rebuild Tristram from D1. I’ve never used Rebuild All Pathing/Rebuild All Maps option before on layout mode (I just did it in editor mode). So I didn’t had an ingame map or minimap but other than having no minature on layout mode it worked fine. Now I wanted to do this properly and I got map and minimap ingame also. It was all good until I ran map editor again and after switching to editor mode and zooming out where I saw that everything apart from initial loaded area was all blacked out. Nothing is visible, rerunning editor doesn’t help. Here’s screenshoot: http://imgur.com/a/mSQQz Works ingame and is visible in layout mode but not in editor mode.

Edit: took a while but while writing this post it just loaded everything, impassable areas are gone on the water but other than that looks fine.

I’ve had that happen a couple times. Restarting the computer fixed it for me…

I think maybe it´s the Capslock and if i have map to zoomed out it happen strange things too, i have to minimize and maximize the editor