Immediate crash of SF 1.36 on start in Unity 5.5.2p4

Hey guys,

so I have a lof of problems with SF since Unity 5.4. It is literally unusable. When I try to open it in our project or any empty project, the window instantly vanishes giving me the following exceptions:

AmbiguousMatchException: Ambiguous matching in method resolution
System.Reflection.Binder.FindMostDerivedMatch (System.Reflection.MethodBase[] match) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/Binder.cs:106)
System.MonoType.GetMethodImpl (System.String name, BindingFlags bindingAttr, System.Reflection.Binder binder, CallingConventions callConvention, System.Type[] types, System.Reflection.ParameterModifier[] modifiers) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/MonoType.cs:245)
System.Type.GetMethod (System.String name, BindingFlags bindingAttr) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/Type.cs:787)
ShaderForge.SF_PreviewWindow.SetupPreview ()
ShaderForge.SF_PreviewWindow..ctor (ShaderForge.SF_Editor editor)
ShaderForge.SF_Editor.InitializeInstance (UnityEngine.Shader initShader)
ShaderForge.SF_Editor.Init (UnityEngine.Shader initShader)
ShaderForge.SF_Editor.InitEmpty ()

NullReferenceException: Object reference not set to an instance of an object
ShaderForge.SF_Editor.Update ()
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:249)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:242)
UnityEditor.HostView.SendUpdate () (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:307)
UnityEditor.EditorApplication.Internal_CallUpdateFunctions () (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorApplicationBindings.gen.cs:197)

NullReferenceException: Object reference not set to an instance of an object
ShaderForge.SF_Editor.OnDestroy ()
UnityEditor.EditorWindow:Close()
ShaderForge.SF_Editor:Update()
UnityEditor.EditorApplication:Internal_CallUpdateFunctions()

With this link you can download an example project (https://www.dropbox.com/s/1vrzu36krk9ay4n/Shaderforge_broken_project.zip?dl=0)