Unreal Build Tool Not Packaging: Unable to instantiate UnrealEd module for non-editor targets: Target -> *.Build.cs -> UMGEditor.Build.cs -> Sequencer.Build.cs

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I know its kind of late and maybe there is more to it but I noticed that UnrealBuildTool recursively creates modules in this order: PublicDependencyModuleNames, PrivateDependencyModuleNames, and then DynamicallyLoadedModuleNames.

Therefore, if your Build.cs file has “UMG” in PublicDependencyModuleNames, but “Engine” is in PrivateDependencyModuleNames the build should fail, as UMG module is dependent on Engine module.

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