What 276 build?
For those wondering about 374_726: I was able to salvage most of the content of that corrupted GPL, and I didn't see anything worth waiting for, so I'm going ahead with the 720-based build for the time being. In any case Asus has been notified, so I would expect a fixed GPL 726 to appear on their website in the coming week.
I was referring to your comment quoted above. I must have been typing too quickly and transposed 726 to 276.
Sorry for the confusion and thanks for the quick reply!