I upgraded to the latest Unity 2017.2 beta yesterday for the Eco System, but it played havoc with my current project.
TextMesh Pro objects disappeared, and I got lots of null reference errors.
I did try and fix the problems but was having no luck
especially with Textmesh Pro as Unity kept unticking the TMP components for some reason?
Anyhow I thought I would give the PM Eco system a go while it was installed and I still couldn't find anything other than the Unity3 and 4 demos/templates?
I did try and reimport PM and TMP but still had the same issues.
I totally gave up in the end and reverted back to 2017.1.
That was a lot of hours I will never get back LOL.
Just warning other users thinking of upgrading to the beta to tread carefully. It may just have been me though, and I would be happy to hear if any one gives it a go and it is a success for them.