Poker odds calculator returns contra-intuitive results

Hi guys,

I tested some combinations of hands at Equilab, and aquired strange results.

AKo vs OJs: 61.07% vs 38.93%
AKo vs QTs: 60.75% vs 39.25%

How come QTs is better then QJs in this particular scenario, when QJs is being generally better hand compared with QTs ?

(I found similar strange pattern also at AKo vs 98s / 97s)