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

It works for me too, let me over explain a bit:
I opened the .uproject with SublimeText (or your editor of choice) and removed the “UMGEditor” from the list of plugins…

	"Plugins": [
		{
			"Name": "ModelingToolsEditorMode",
			"Enabled": true,
			"TargetAllowList": [
				"Editor"
			]
		}
	]

I do will like to know where the error comes from O_o …what does the plug-in does and why start buggin? …I guess there is another way to solved like making sure that the plug-in is actually in the source?