This plugin doesn't seem to be working for me. I'm still on Vaadin 8 but I

This plugin doesn’t seem to be working for me. I’m still on Vaadin 8 but I’m going to upgrade later this year. I just need this to work with what I have right now. I have the plugin integrated but the menu is completely blank. I must be missing something. There is a big white space above the text which implies the editor is supposed to be there but it’s not. I would suspect the real estate has been established but the javascript and styles are not applying to the id location where the editor is supposed to visually be seen. Not sure how to fix though.

Appears broken with 5.0 and 4.1. I don’t think I can go any earlier. I do see that a Vaadin developer has used this recently in 2021. https://github.com/mstahv/tinymcewrapper/blob/master/src/test/java/org/vaadin/tinymceeditor/TinymceeditorApplication.java

Not sure why I have issues.