I found that my priest in a BG with raid frames up, I don't see the buffs/debuffs any more like I used to. I have filter on, which is what I like, but nothing shows, even when I cast Fort on people. Mostly I like seeing all the forts as a reminder when to recast, but seeing stuff I can dispell is also helpful.
Just updated to latest version (morning of May 6 2007) and still no change. I can't seem to make any buffs/debuffs appear next to my raid frames in BG like they used to. I had just cast Fort on myself as a test, it doesn't appear next to my name under group 3. "Filter" on or off had no effect either.
Here's a screenshot showing my raid frame settings.