Upgraded to Unity 5.4.1, editor freezes whenever I attempt to save a scene

I have attempted upgrading from Unity 5.3.3 to the latest version and am continuing to run into an issue that keeps me from being able to do so. I open my project and everything is imported fine. But, every time I attempt to save a scene the editor freezes (I get the little spinning rainbow disc that never goes away). Does anyone have any ideas what could be causing this and how I can fix it? I’d love to not be stuck on 5.3.3 forever.

Thanks!

I have not. Since there isn’t an actual crash, I never get to the screen that would allow the bug to be reported with the relevant data.

There is an actual bug report program that you can open

thanks! I’ll give that a go.

@byCDW
Note:
There wasn’t a solution for me. What I had to do was create an empty project in the new version of Unity and then manually import the assets. It was unpleasant, to say the least.

Is there a solution yet? I have this problem too (5.6.0f3).