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Fixed in 2022.3.7f1



Found in


Issue ID




Crash on GUIView::OnInputEvent when opening an EditorWindow from a GenericMenu in a popup window



How to reproduce:
1. Open the attached “EditorWindowCrash” Project
2. Open the “Test” Drop-down tab from the Tool Bar and press on the “OpenTestWindow” button
3. Press the “menu to crash” button and press the “open crash window #” button in order (e.g: 1 → 2 → 3)
4. Press the “open crash window 3” button

Expected result: The "Test" window opens
Actual result: The Editor crashes

Reproducible with: 2022.2.4f1, 2022.3.2f1
Not reproducible with: 2021.3.27f1, 2022.2.3f1, 2023.1.0f1, 2023.2.0a9

Reproducible on: Windows 10
Not reproducible on: macOS Ventura 13.4 (Intel)

Notes: If the issue does not reproduce, repeat step 4

First few lines of the Stack Trace:
{\{0x00007FF6E5EA1385 (Unity) GUIView::OnInputEvent }}
{\{0x00007FF6E58DC2C3 (Unity) GUIView::ProcessInputEventFromAPI }}
{\{0x00007FF6E58DC198 (Unity) GUIView::ProcessInputEvent }}
{\{0x00007FF6E5E9A2CC (Unity) GUIView::DoPaint }}
{{0x00007FF6E5EA327C (Unity) GUIView::RepaintViews}}
{{0x00007FF6E5E9BAA1 (Unity) GUIView::GUIViewWndProc}}
{\{0x00007FF8E0B7E858 (USER32) CallWindowProcW }}
{\{0x00007FF8E0B7E3DC (USER32) DispatchMessageW }}
{\{0x00007FF8E0B90C33 (USER32) SendMessageTimeoutW }}
{{0x00007FF8E1AD0EB4 (ntdll) KiUserCallbackDispatcher}}

  1. Resolution Note (fix version 2022.3.7f1):

    Opening an EditorWindow from an EditorWindow displayed via EditorWindow.ShowDropdown no longer crashes.

Comments (5)

  1. starikcetin

    Jul 02, 2023 13:17

    ACEMONSTER's `editorWindow.Close()` suggestion fixes the crash for me.

  2. starikcetin

    Jul 02, 2023 13:05

    Editor version: 2021.3.18f1

  3. starikcetin

    Jul 02, 2023 13:05

    Sometimes happens to me when clicking on a button from a custom DisplayDialog started from a PopupWindowContent. Here are the crash logs:
    <RI> Initialized touch support.

    Dereferencing NULL PPtr!

    Native Crash Reporting
    Got a UNKNOWN while executing native code. This usually indicates
    a fatal error in the mono runtime or one of the native libraries
    used by your application.

    Managed Stacktrace:
    Received signal SIGSEGV
    Obtained 9 stack frames
    0x00007ff6d9ce3d4a (Unity) GUIView::ProcessInputEvent
    0x00007ff6da22de4e (Unity) GUIView::DoPaint
    0x00007ff6da2370fd (Unity) GUIView::RepaintAll
    0x00007ff6d9db5603 (Unity) Application::TickTimer
    0x00007ff6da20aa1a (Unity) MainMessageLoop
    0x00007ff6da20f2eb (Unity) WinMain
    0x00007ff6db5c484e (Unity) __scrt_common_main_seh
    0x00007ffa61227034 (KERNEL32) BaseThreadInitThunk
    0x00007ffa617426a1 (ntdll) RtlUserThreadStart

  4. AceMonster

    Jun 26, 2023 10:51

    This problem also reproduce on 2021.3.18f1,but is solved from me use a tortuous way.
    By test,if you close POPUPWINDOW before open EDITORWINDOW,this problem has never reproduced.
    if (GUILayout.Button("打开窗口"))
    editorWindow.Close(); //Important
    the crash info is "Dereferencing NULL PPtr!", so i think this problem is cause by the reason that popup window is not closed properly when new window opened and lost focus.

  5. Emily60

    Jun 14, 2023 09:16

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