Description

The legacy text widget, use the tinymce error. If you have a text widget from the old widget editor then go to the new widget screen, this generates a javascript error.

TypeError: wp.editor.initialize is not a function
    at buildEditor (text-widgets.js?ver=5.7.2:265)
    at n.initializeEditor (text-widgets.js?ver=5.7.2:359)
    at renderWhenAnimationDone (text-widgets.js?ver=5.7.2:434)
    at HTMLDocument.handleWidgetAdded (text-widgets.js?ver=5.7.2:437)
    at HTMLDocument.dispatch (jquery.js?ver=3.5.1:5429)
    at HTMLDocument.elemData.handle (jquery.js?ver=3.5.1:5233)
    at Object.trigger (jquery.js?ver=3.5.1:8715)
    at HTMLDocument.<anonymous> (jquery.js?ver=3.5.1:8793)
    at Function.each (jquery.js?ver=3.5.1:381)
    at jQuery.fn.init.each (jquery.js?ver=3.5.1:203)

Step-by-step reproduction instructions

1. Activate classic widgets plugins.
2. Insert text widget
3. Add some text to widget.
4. Deactivate classic widgets plugins.
5. Go to widget screen.
6. See error.

Expected behaviour

No error message and the tinymce editor should be displayed.

Actual behaviour

Screenshots or screen recording (optional)

Code snippet (optional)

WordPress information

• WordPress version:
• Gutenberg version:
• Are all plugins except Gutenberg deactivated?
• Are you using a default theme (e.g. Twenty Twenty-One)?

Device information

• Device:
• Operating system:
• Browser: