Hi Guys,
First off I have been building a new UI with the new Unity UI and what took me months to develop I replaced in a few short days, with animations and all the little awesomenesses in the the API.
That been said I use Substance and ProceduralMaterials quite a lot and in Unity 4.5.3 there was a bug discussed in detail here (Unity Crashes on Startup with Strange Error - Unity Engine - Unity Discussions) . There was a patch made quite recently for it and it was crippling to say the least. Well I installed the Beta 4.6 build 17 & 18 and the bug is back which indicates that the code is on a different branch. Can we get a new Beta with the patch rolled up in the Beta so that I can build my new UI on a scene that uses Substances?