We held a cup with 16 teams. 1. Round was 4x4 leagues. After playing 1. Roundonly the worst teams advanced to the next round... Meaning that places 1+2 were out, while 3+4 played the 1/4 .I'll post some pictures.

Hello,

All cups (official ones, friendly ones, and apparently union's cup too) were affected by this strange bug.
A patch was applied to avoid this bug in the future, but "old" cups needs to be modified manually by an admin.
I'm scared that this can't be possible now, cause I can see on your screenshot that the cup is already finished.

Turning tables @aymeric45