Guild Wars 2

I’ve completed high stakes gambler(5 gambits active at tier 3) but the achievement for 1 gambit on tier 3 never activated. The one for 3 gambits on tier 3 activated just fine.
Please assist to rectify, thank you.

Pictures for proof

ok nevermind, just cleared tier 3 with 1 gambit.
Its still a bug though since its suppose to activate when someone clears with 5 gambits