WYSIWYG fails to load when directly clicking on the new object action

Reproduction steps:

Scenario 1:

• Find a Document containing an XObject, this XObject must havce a long text field with editor=WYSIWYG
• Click on New MyClass object

Scenario 1:

• Find a Document containing an XObject, this XObject must havce a long text field with editor=WYSIWYG
• Select the class on the selectize field at the and click on New object

Expected:

A form is displayed for the new object. The WYSIWYG editor is properly initialized

Result

The form is displayed for the new object, but the editor keeps spinning and is never initialized

Note: clicking on the existing object to display it too makes all the WYSIWYG editor initialized (even the one for the new object).
Note 2: 12.10.10 is working well