Gameplay - Unable to cast after channeling Edge of Night

Not sure if channeling EoN was the trigger but after using it i was unable to cast any abilities or use activated items, except my potion, until i died. Was playing Pantheon on Twisted Treeline.

Match for ref: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2363928262/35067628?tab=overview

Will see if I can reproduce and update.