decreasing drop

Elafina - Raging Tide

is this technical problem or is just my idea? I go every day at TT solo or squad i get a lot of item but 2 days now i go 10-20 times at day and i only get klunky sword.Anyone else notice that problem?I try everything solo mode , squad mode,hard mode , take with me small lvl but only klunky sword i get not even mirage.b:angry