Trauma mace still bugged?

Does anybody have the Trauma healer mace (dropped by Rotface in ICC)?
I can't seem to get it to proc any heals. I ran about a dozen RDF HC yesterday
and I did not see it proc even once. Recount does not show it doing any heal either.

Anyone tried using Trauma on the newly released WOTLK core?
I wonder of the 264 ilvl works properly but the 277 ilvl version is bugged?

http://wotlk.openwow.com/item=50685

On my druide it works fine, doing 5-10% of the total healing on recount and the proc has a uptime of around 50% when stacking hots on +10 targets.