When I try to package my project, it fails with the following error output.
I am using UE 5.3.2 and packaging for Windows only.
LogOutputDevice: Error: === Handled ensure: ===
LogOutputDevice: Error: Ensure condition failed: !PersistentLayout->PrimaryArea.IsValid() [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Docking\TabManager.cpp] [Line: 944]
LogOutputDevice: Error: Stack:
LogOutputDevice: Error: [Callstack] 0x00007fff1a2d40a0 UnrealEditor-Slate.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007fff1a2f1c84 UnrealEditor-Slate.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007fff1a260ced UnrealEditor-Slate.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007fff1a926870 UnrealEditor-Core.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007fff1a94541b UnrealEditor-Core.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007ff7652acea9 UnrealEditor.exe!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007ff7652cd28c UnrealEditor.exe!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007ff7652cd37a UnrealEditor.exe!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007ff7652d0854 UnrealEditor.exe!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007ff7652e6984 UnrealEditor.exe!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007ff7652e9d7a UnrealEditor.exe!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007fff6ca97344 KERNEL32.DLL!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00007fff6dce26b1 ntdll.dll!UnknownFunction []
PackagingResults: Error: Unknown Error
PackagingResults: Error: Unknown Error
PackagingResults: Error: Unknown Error
PackagingResults: Error: Unknown Error