Magnolia 6.3.15 known issues
UI freezes when working with a rich text field editor
In Magnolia 6.3.15 and 6.3.16, the UI freezes when working with a rich text field editor, particularly when switching tabs or languages. This impacts common day-to-day operations for editors.
The issue will be resolved in the upcoming Magnolia 6.3.17 release. The fix is tracked in ticket MGNLUI-9284.
We apologize for any inconvenience caused and appreciate your patience while we resolve this issue.