I get this error in Editor console every once and then. I’ve no idea what this error is about… I am using 4.6 RC2.
Me too, just opening a scene makes 400+ of this errors and similar to appear.
But then everything works 
Using rc2 but did already see it in rc1.
An example of what happens in my project when I open it. Started the project with 4.6 beta 17 and been upgrading until RC2.
i’ve seen the error before as well but never able to reproduce it so i can track it down. If yours repos please submit a bug
Done. Thanks!
+1 I have the same issue. My project is 2GB and I have no idea what to remove in order to submit a bug report.