Hi Brian,
Thanks for reaching out and I’m sorry about this issue.
I would like to ask you to test if you are having this issue with a default theme like twentysixteen and the latest versions of our plugins. That will help us determine if this is a bug in the plugin, or Salient is not fully compatible with our latest versions.
Note, when you downgrade it is always best to downgrade both ET and ET+ to the “same” version. You can check our blog on the different release dates, and also you should be able to see the release dates in your account under downloads.
Let me know what you find.
Cheers,
Andras