Specifying a button class from a local CSS definition has just stopped working in Build 6699. Style definitions on other constructs that have both class and style options (containers, text etc) work correctly. The local CSS Class definition appears in the CSS Class Name list and displays correctly in the Preview pane. However in both Working and Live Preview (all browsers), the class isn't adopted. I've checked the release notes and there isn't an obvious explanation.

Creating a simple UX with a Navigator, one panel card and a single button duplicates the problem so it's not unique to my project. The local CSS Class isn't in the Xbasic listing either. I've re-installed Alpha without any change in behavior.

Any help/pointers are appreciated.