So I added two powers, one an original creation and the other is Farsight. I made an error in the latter, so most of the boxes are unfilled (and I didn't notice). So that makes sense.
The problem with Farsight may be in the editor? Most of the powers is a 4x5 tree, while Farsight is only a 4x4, so I left the entire bottom row on the editor blank. Could that be causing the problem?