Looks as if the big fix is coming on 13 November. Received an email from Toyota that the update will be available then. Several app's, such as Pandora plus several others, will no longer be available with the Entune app suite. Oh well. Such is life.
My 2018 Entune has problems, also. Spoke with my dealership and they mentioned that Toyota is working with Apple for a fix. Most of the problems are related to using Entune associated with an Apple product. The dealership is hoping a fix will be out soon.