Why is this happening :( ?

Why is this happening :( ?

Hi, I was wondering how come sometimes I can upload maps fine but on certain maps the site will give me a blank page after it uploads the map with just the site background and my browser says the page is done loading in the bottom

I had that problem to sumtimes, but at me the minimap was black. I just refreshed and waited for about 45 minutes Then it finally worked. but before u r buzy post a comment that people shouldt dl it cuz if they dl the wrong 1 they will host the buggy map