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Thank you for reporting a bug to Unity. We have reviewed the issue carefully, and in this case, the team is unable to prioritize fixing this bug. There are a number of reasons we make this decision, including the impact and severity of the issue across our user and customer base, and the possibility that future plans may solve the problem in a different way, or that a workaround for the bug may be available. Today we will be closing this case. Thank you again for taking the time to report this issue, and please let us know if there is anything else that changes the impact or severity of this issue.
Thank you for reporting a bug to Unity. We have reviewed the issue carefully, and in this case, the team is unable to prioritize fixing this bug. There are a number of reasons we make this decision, including the impact and severity of the issue across our user and customer base, and the possibility that future plans may solve the problem in a different way, or that a workaround for the bug may be available. Today we will be closing this case. Thank you again for taking the time to report this issue, and please let us know if there is anything else that changes the impact or severity of this issue.
Reproduction steps:
1. Create a new project
2. Install Multiplayer Play Mode package (Window > Package Management > Package Manager)
3. Click on “Default Play Mode” button and select “Configure Play Mode Scenarios” option to open Play Mode Scenarios window
4. Create two new Play Mode Scenarios
5. Select one of the newly created Play Mode Scenarios as the default one
6. Open Play Mode Scenarios window again and delete the default Play Mode Scenario
7. Select another Play Mode Scenario as the default one
8. Observe the Console
Actual result: “Multiple instances of EditorPlayModeGuard detected. There should only be one instance.” error is thrown
Expected result: No errors or warnings are thrown
Reproducible with: 2.0.2 (6000.4.0a2, 6000.4.11f1, 6000.5.0b12), 3.0.0 (6000.6.0a7)
Not reproducible with: 1.6.3 (6000.0.76f1), 2.0.2 (6000.3.17f1, 6000.4.0a1)
Reproduced on: macOS Tahoe 26.5 (M4), Windows 11
Note:
Multiple instances of EditorPlayModeGuard detected. There should only be one instance.
UnityEngine.Debug:LogError (object)
Unity.Multiplayer.PlayMode.Editor.EditorPlayModeGuard:AssertSingleton () (at /Users/bokken/build/output/unity/unity/Modules/MultiplayerEditor/Managed/MultiplayerPlayMode/PlayModeConfig/EditorPlayModeGuard.cs:59)
Unity.Multiplayer.PlayMode.Editor.EditorPlayModeGuard:OnEnable () (at /Users/bokken/build/output/unity/unity/Modules/MultiplayerEditor/Managed/MultiplayerPlayMode/PlayModeConfig/EditorPlayModeGuard.cs:43)
UnityEngine.ScriptableObject:CreateInstance<Unity.Multiplayer.PlayMode.Editor.EditorPlayModeGuard> ()
Unity.Multiplayer.PlayMode.Editor.OrchestratedScenario:OnSelected () (at /Users/bokken/build/output/unity/unity/Modules/MultiplayerEditor/Managed/MultiplayerPlayMode/PlayModeConfig/OrchestratedScenario/OrchestratedScenario.cs:176)
Unity.PlayMode.Editor.ScenarioManagerProvider:AssignActiveConfig (Unity.PlayMode.Editor.PlayModeScenario) (at /Users/bokken/build/output/unity/unity/Modules/PlayModeEditor/Managed/Scenarios/ScenarioManagerProvider.cs:103)
Unity.PlayMode.Editor.ScenarioManagerProvider:set_ActivePlayModeConfig (Unity.PlayMode.Editor.PlayModeScenario) (at /Users/bokken/build/output/unity/unity/Modules/PlayModeEditor/Managed/Scenarios/ScenarioManagerProvider.cs:86)
Unity.PlayMode.Editor.PlayModeScenarioManager:set_ActiveScenario (Unity.PlayMode.Editor.PlayModeScenario) (at /Users/bokken/build/output/unity/unity/Modules/PlayModeEditor/Managed/Scenarios/PlayModeScenarioManager.cs:96)
Unity.PlayMode.Editor.PlaymodePopupContent:OnItemSelected (System.Collections.Generic.IEnumerable`1<object>) (at /Users/bokken/build/output/unity/unity/Modules/PlayModeEditor/Managed/Scenarios/UI/Toolbar/PlayModePopupContent.cs:90)
UnityEditor.GUIView:ProcessEvent (UnityEngine.EntityId,intptr,bool&) (at /Users/bokken/build/output/unity/unity/Editor/Mono/GUIView.cs:70)
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