"No appearances assigned" despite visible appearances

Hello all,

I have a part which I've assigned an image-based appearance to (SW 2013). I've been getting the "no appearances assigned" message in the DisplayManager. Here's what happened:

1) Appearances showed as default gray when in an assembly containing the part.

2) I opened the part, and the appearances were visible, but not listed.

3) They were visible in a PhotoView 360 preview at this point.

4) I clicked a face that had an appearance assigned to. The appearance was available through the context menu, so I edited it and reassigned the appearance.

5) The appearance now displayed in the assembly.

6) However, when I open the part, all I see is default gray!!

7) The appearance still shows up in the PV360 preview.

8) DiplayManager still says "No appearances assigned."

What do I do? Does anyone have a fix for this?

Please see screenshot below:

SolidworksParts And Features