As far as I knew the only recent main changes to act were the aoe and DA text changes, well so it could read them correctly, for about a week or so my guildy was putting up parses with me doing like 1k, lol, from not having an updated act. As far as it not reading rampaging blows, I've never heard of this or it having trouble reading any CAs/procs that i know of

. Edit: and if its coming up in your combat text and not in act thats really weird and i have no idea what the prob could be if you re DLed act and everything