@JonathanCordova, I have a response from one of our team members. Could you and @CamperJohn try it and let us know if it still happens?
The User has to set the “Game Winner Display Time” (located in the Island Settings device under “Post Game”) to a value above “0.0”, which is the default. The End Game device’s Victory/Defeat callouts are displayed as expected when changing the default value.