[Shader Graph's bug] Assertion failed on expression: 'success'

Will this old Shader Graph's bug with floats that I've discovered in November ever be fixed?

Code (CSharp):

1. Assertion failed on expression: 'success'
2. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
3.  
4. Assertion failed on expression: 'success'
5. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
6.  
7. ArgumentException: Getting control 1's position in a group with only 1 controls when doing repaint
8. Aborting
9. UnityEngine.GUILayoutGroup.GetNext () (at C:/buildslave/unity/build/Modules/IMGUI/LayoutGroup.cs:117)
10. UnityEngine.GUILayoutUtility.DoGetRect (System.Single minWidth, System.Single maxWidth, System.Single minHeight, System.Single maxHeight, UnityEngine.GUIStyle style, UnityEngine.GUILayoutOption[] options) (at C:/buildslave/unity/build/Modules/IMGUI/GUILayoutUtility.cs:461)
11. UnityEngine.GUILayoutUtility.GetRect (System.Single minWidth, System.Single maxWidth, System.Single minHeight, System.Single maxHeight, UnityEngine.GUIStyle style, UnityEngine.GUILayoutOption[] options) (at C:/buildslave/unity/build/Modules/IMGUI/GUILayoutUtility.cs:450)
12. UnityEditor.EditorGUILayout.GetControlRect (System.Boolean hasLabel, System.Single height, UnityEngine.GUIStyle style, UnityEngine.GUILayoutOption[] options) (at C:/buildslave/unity/build/Editor/Mono/EditorGUI.cs:9249)
13. UnityEditor.EditorGUILayout.GetControlRect (System.Boolean hasLabel, System.Single height, UnityEngine.GUILayoutOption[] options) (at C:/buildslave/unity/build/Editor/Mono/EditorGUI.cs:9244)
14. UnityEditor.ShaderInspector.ShaderErrorListUI (UnityEngine.Object shader, UnityEditor.ShaderError[] errors, UnityEngine.Vector2& scrollPosition) (at C:/buildslave/unity/build/Editor/Mono/Inspector/ShaderInspector.cs:161)
15. UnityEditor.ShaderInspector.ShowShaderErrors (UnityEngine.Shader s) (at C:/buildslave/unity/build/Editor/Mono/Inspector/ShaderInspector.cs:272)
16. UnityEditor.ShaderInspector.ShowShaderCodeArea (UnityEngine.Shader s) (at C:/buildslave/unity/build/Editor/Mono/Inspector/ShaderInspector.cs:127)
17. UnityEditor.ShaderInspector.OnInspectorGUI () (at C:/buildslave/unity/build/Editor/Mono/Inspector/ShaderInspector.cs:78)
18. UnityEditor.InspectorWindow.DoOnInspectorGUI (System.Boolean rebuildOptimizedGUIBlock, UnityEditor.Editor editor, System.Boolean wasVisible, UnityEngine.Rect& contentRect) (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1625)
19. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
20.  
21. Unexpected top level layout group! Missing GUILayout.EndScrollView/EndVertical/EndHorizontal?
22. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
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24. GUI Error: You are pushing more GUIClips than you are popping. Make sure they are balanced.
25. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
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27. Shader error in 'SeekSick6/level.000': incorrect number of arguments to numeric-type constructor at line 229 (on d3d11)
28.  
29. Compiling Vertex program with UNITY_PASS_META
30. Platform defines: UNITY_ENABLE_REFLECTION_BUFFERS UNITY_USE_DITHER_MASK_FOR_ALPHABLENDED_SHADOWS UNITY_PBS_USE_BRDF1 UNITY_SPECCUBE_BOX_PROJECTION UNITY_SPECCUBE_BLENDING UNITY_ENABLE_DETAIL_NORMALMAP SHADER_API_DESKTOP UNITY_LIGHT_PROBE_PROXY_VOLUME UNITY_LIGHTMAP_RGBM_ENCODING
31.  
32. Shader error in 'SeekSick6/level.000': incorrect number of arguments to numeric-type constructor at line 2707 (on d3d11)
33.  
34. Compiling Vertex program with DECALS_3RT SHADOW_LOW USE_CLUSTERED_LIGHTLIST
35. Platform defines: UNITY_ENABLE_REFLECTION_BUFFERS UNITY_USE_DITHER_MASK_FOR_ALPHABLENDED_SHADOWS UNITY_PBS_USE_BRDF1 UNITY_SPECCUBE_BOX_PROJECTION UNITY_SPECCUBE_BLENDING UNITY_ENABLE_DETAIL_NORMALMAP SHADER_API_DESKTOP UNITY_LIGHT_PROBE_PROXY_VOLUME UNITY_LIGHTMAP_RGBM_ENCODING

If I change gradient to just white-to-black, it compiles without errors.