Fusion Title+ Issues

Title+ (Fusion Title) In Resolve 15 Beta 6 in the edit page as well as fusion page show "Title" but it is not editable. All changes on text, color, whatsoever, have no influence. Title+ not functioning as of beta 5.
I'm on an iMac (27-inch, Late 2013) MacOS 10.13.5. Switching between Edit en Fusion page doesn't help, deleting cache neither.