Is this the after-game battlefields? All of the rifts in the temple should lead to a BF. What do you mean by 'blank'?
If the screen is black, but the mini-map shows your character and surrounding area, double click on your hero's portrait or use the screen focus re-centre hotkey to make sure the screen just didn't jump somewhere else.
If the ground is a repeating brown (or whatever) texture and there are no trees or rocks, etc;
try deleting the files within the dynamic folders (not the folders themselves, though);
'..\Beyond Divinity\Acts\Act1\Dynamic', '..\Beyond Divinity\Acts\Act2\Dynamic', etc.
These folders are used as a cache for the game. Files are created / copied there from the save game folder when you load, and written / copied to those folders when you save a game. The files will be re-created as required the next time you start Beyond Divinity. If there was a corrupt file in those folders, deleting the files should fix the problem.