4.26.2 Build fails "EDL dep graph contained a cycle"

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1

I get the following errors when trying to package:
UATHelper: Packaging (Windows (64-bit)): LogSavePackage: Error: Cycle Node Serialize:/Game/GAME221_04/ychen4/BP_door2.Default__BP_door2_C
UATHelper: Packaging (Windows (64-bit)): LogSavePackage: Error: Cycle Node Create:/Game/GAME221_04/ychen4/BP_door2.BP_door2_C:BP_door2_GEN_VARIABLE:BP_door2_GEN_VARIABLE_BP_door2_C_CAT
UATHelper: Packaging (Windows (64-bit)): LogSavePackage: Error: Cycle Node Serialize:/Game/GAME221_04/ychen4/BP_door2.BP_door2_C:BP_door2_GEN_VARIABLE
UATHelper: Packaging (Windows (64-bit)): LogSavePackage: Error: ----- Serialize:/Game/GAME221_04/ychen4/BP_door2.Default__BP_door2_C contained a cycle (listed above).
PackagingResults: Error: Cycle Node Serialize:/Game/GAME221_04/ychen4/BP_door2.Default__BP_door2_C
PackagingResults: Error: Cycle Node Create:/Game/GAME221_04/ychen4/BP_door2.BP_door2_C:BP_door2_GEN_VARIABLE:BP_door2_GEN_VARIABLE_BP_door2_C_CAT
PackagingResults: Error: Cycle Node Serialize:/Game/GAME221_04/ychen4/BP_door2.BP_door2_C:BP_door2_GEN_VARIABLE
PackagingResults: Error: ----- Serialize:/Game/GAME221_04/ychen4/BP_door2.Default__BP_door2_C contained a cycle (listed above).
UATHelper: Packaging (Windows (64-bit)): LogOutputDevice: Warning:
UATHelper: Packaging (Windows (64-bit)):
UATHelper: Packaging (Windows (64-bit)): Script Stack (0 frames):
UATHelper: Packaging (Windows (64-bit)):
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: begin: stack for UAT
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: === Critical error: ===
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/SavePackage/SavePackageUtilities.cpp] [Line: 1121]
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: EDL dep graph contained a cycle (see errors, above). This is fatal at runtime so it is fatal at cook time.
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff9e6614f99 KERNELBASE.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff97c5bd066 UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff97c5c07a8 UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff97c2ce8cd UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff97fda734c UE4Editor-CoreUObject.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff974b86c2c UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff974bafc9a UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff6e2ce9a29 UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff6e2ce0eec UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff6e2ce125a UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff6e2cf52bd UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff6e2cf736e UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff9e6a27034 KERNEL32.DLL!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: [Callstack] 0x00007ff9e8962651 ntdll.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: end: stack for UAT
PackagingResults: Error: begin: stack for UAT
PackagingResults: Error: === Critical error: ===
PackagingResults: Error: Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/SavePackage/SavePackageUtilities.cpp] [Line: 1121]
PackagingResults: Error: EDL dep graph contained a cycle (see errors, above). This is fatal at runtime so it is fatal at cook time.
PackagingResults: Error: [Callstack] 0x00007ff9e6614f99 KERNELBASE.dll!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff97c5bd066 UE4Editor-Core.dll!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff97c5c07a8 UE4Editor-Core.dll!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff97c2ce8cd UE4Editor-Core.dll!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff97fda734c UE4Editor-CoreUObject.dll!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff974b86c2c UE4Editor-UnrealEd.dll!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff974bafc9a UE4Editor-UnrealEd.dll!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff6e2ce9a29 UE4Editor-Cmd.exe!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff6e2ce0eec UE4Editor-Cmd.exe!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff6e2ce125a UE4Editor-Cmd.exe!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff6e2cf52bd UE4Editor-Cmd.exe!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff6e2cf736e UE4Editor-Cmd.exe!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff9e6a27034 KERNEL32.DLL!UnknownFunction []
PackagingResults: Error: [Callstack] 0x00007ff9e8962651 ntdll.dll!UnknownFunction []

2

It looks like this is the problem object (top of your stack trace). To resolve for my own project, I had to delete the object and then rebuilt without any issues