An issue with service outage occuring on rendering of the user interface has been resolved.
If a validator is defined for a property in a custom editor, and a user enters a value not compliant with the validation rule, the user is informed via a pop-up message about the incompatibility of the value with the validator rule. When the user closes the pop-up via the Close button, the editor is no longer closed as well. The user can directly resume work in the editor and correct the value.