Hi Holotable Heroes,
There has been some discussion around how ties are resolved in Grand Arena, and I wanted to clarify one part specifically:
If two players tie in Grand Arena with the exact same amount of Banners at the end of a round then Galactic Power will be used to resolve the tie. The Galactic Power of both players is captured at the time of matchmaking and does not update at the end of a battle. This means at the end of an event both player's GP may have changed and will not be representative of who would win in a tie.
If you think you are experiencing a bug in Grand Arena, please let us know over in the official bug thread