Tryndamere ult

When playing as Tryndamere, after activating the ultimate... It didnt worked - died and the ultimate went on cooldown. AFAIK Trynda's ult works always - doesnt matter if you are stunned, silenced, blinded or anything... So if Tryndamere die and it the ultimate immedietly go on cooldown - this is not right.

Happend at 18:00-19:00 minute in the game (killed by Udyr)

This is the match hystory, hopefully it helps http://matchhistory.eune.leagueoflegends.com/en/#match-details/EUN1/1324019032/216315897?tab=overview