I've spent a lot of hours, now, trying to import any kind of graphic, (into the Browser via the "Import" button), that has an alpha channel. I've tried both .tga and .psd formats from every graphics application that I own - and in each case I get the notorious "Import Failed" notification.
If others are having such a frustrating time getting simple textures into the engine, I'm sure it will become a major "show stopper". People don't want to have to devise "workarounds" which, in other simpler applications, are the simplest of procedures.
Does anyone have any specific advice for this difficulty of mine?