So what's the reason for this one stratIClostvictory.jpg).
I lost connection for a few seconds. After that, opponent lost connection for a few seconds.
After that, this happens. Victory with -6 saying I lost connection (did not) against a higher rank.
That is bizarre! Prior to that game, did you ever play a game in which you lost connection? It is a known problem that if you lose a game due to a connection error, the ELO adjustment may not take place until the standard completion of a subsequent game. This can lead to some strange outcomes (e.g., a seeming loss of points for a victory).
I am still trying to figure out how the Victory sign comes up with an indication that you lost connection, though....