Issues with Large Map size?

Issues with Large Map size?

I'm wondering if anyone knows of potential problems with using a map that is larger than the 256x256 max. I remember seeing a post somewhere that mentioned a problem with region creation, but are there any others?

Whenever you open the Map Properties box (description, loading screen, etc) it wont let you close it because >256 is not allowed by the basic world editor, and the Map Size and Camera Bounds is included within this menu.

So you'll have to open it in WEU every time.

I anticipated that problem, but you really only need to edit those details a few times. I was thinking more about continual problems, like certain jass scripts not working outside the regular 256 x 256 bounds.

I suppose I'd discover any problems if I made such a huge map, but I was hoping to avoid learning those things the hard way.

I once had a big map and the undead blight did not work - well, it showed up but it did not let me build anything on it... very annoying because it was a melee map...