Photoshop not recognizing alpha channel from After Effects still frame export.

Just like it sounds. I have an image with a transparent BG in AE that I want to be able to open in Photoshop. I go to Composition>Save Frame As then choose a PSD with transparency. It exports fine. The alpha channel shows up when I do quicklook on the Mac. It shows up in Preview. I have transparency when I import it into Final Cut. I have transparency when I bring it back into After Effects. But when I try to open it up in Photoshop, it has a black background. I have also tried a TIFF with transparency, but that doesn't work either.

Anyone know what's happening here? Am I missing something important?

Thanks for the suggestion. Unfortunately that only works halfway. I get the outline transparency back, but some of the semi-transparent colorized areas get knocked out. I might not be creating the mask correctly, but the real problem is that I can't just open up this image that's supposed to have transparency built into it.

I did try that, but it's the same problem. Here's some screen grabs of what it looks like in AE versus what it looks like in Photoshop when I try to export as layers:

http://imgur.com/a/S6CIN

Photoshop on top.
AE on the bottom.

It's not the biggest difference, but it's enough to be annoying and unusable for certain applications.