Maybe this
[16738] [UnityCrossThreadLogger]6/25/2020 5:20:03 PM: Match to CA8158CA906B6A1F: Error
{ "transactionId": "00000000-0000-0000-0000-000000000000", "error": { "errorCode": "MatchServiceErrorCode_UnknownServerError", "errorMessage": "Internal Server Error" } }
[16740] [UnityCrossThreadLogger]6/25/2020 5:20:03 PM: CA8158CA906B6A1F to Match: ClientToMatchServiceMessageType_ClientToGREUIMessage
17637] Unloading the last loaded scene Assets/Core/MatchScene/MatchScene.unity(build index: 6), is not supported. Please use SceneManager.LoadScene()/EditorSceneManager.OpenScene() to switch to another scene.
Maybe this
[16738] [UnityCrossThreadLogger]6/25/2020 5:20:03 PM: Match to CA8158CA906B6A1F: Error
{ "transactionId": "00000000-0000-0000-0000-000000000000", "error": { "errorCode": "MatchServiceErrorCode_UnknownServerError", "errorMessage": "Internal Server Error" } }
[16740] [UnityCrossThreadLogger]6/25/2020 5:20:03 PM: CA8158CA906B6A1F to Match: ClientToMatchServiceMessageType_ClientToGREUIMessage
17637] Unloading the last loaded scene Assets/Core/MatchScene/MatchScene.unity(build index: 6), is not supported. Please use SceneManager.LoadScene()/EditorSceneManager.OpenScene() to switch to another scene.