Guild Wars 2

I was doing the Auric Basin meta cycle.. I did it all from the start of the cycle to the end and we beat the octovins etc and won.. But it did not give me the Gold Backpack frame from completing the meta event cycle. So my question is do you have to do the achievements in order or does it matter.. Cause I havent completed the one before that one which requires you to complete the Heart of thorns Act 1 Mastery. Or is this a glitch?

Collections need to be done in order, but not individual achievements. If you already have Warmaster’s collection unlocked, it’s probably a glitch, unless there’s a hidden requirement for map to be tier 4 or something.