I have a single-elimination set up in my association playoff. For some reason, the first round game got played twice despite I have best of one setting setup.
As shown above. I won the game against SOHS in the first round, so two days later I should played another team. Instead, I was playing against SOHS again. This issue only exist in the opening round as you can see there are no subsequent issues in the following rounds. (and yes, I am sure that my first round game is been set to Best-of-One)