The module broke the comment forms on my site. My restricted text format does not allow commentors to post images, so on that format I do not have the image button in my CKEditor toolbar.
The Editor Advance Image module is hiding the comment text area and throwing a JavaScript error. This is what it looks like for a user on a clean Drupal 8 install:

Users cannot enter comments and the text format selector is hidden as well. The comment field is being hidden with an inline "visibility: hidden" css style.
Also, on my text format set up screen, I am still seeing the Editor Advanced Image settings tab, even though images are disabled in this text format:

As mentioned above, this has been replicated on a clean Drupal 8 install by pulling the image icon off of the "Restricted HTML" text format's CKEditor bar and allowing anonymous users to post comments with that text format.
| Comment | File | Size | Author |
|---|---|---|---|
| text_format.jpg | 118.23 KB | robert gomez | |
| comment_hidden.jpg | 70.63 KB | robert gomez |
Comments
Comment #2
wengerkIt has been fixed in #3091572: Creating an editor without adding the possibility of including an image, will cause the editor to not render, may I ask you to try the patch there ?
Comment #3
robert gomez commentedAh, yes. That's the same issue. I should have searched past issues better. The patch fixes the textarea rendering. Thanks.
Although the patch doesn't address the "Default image class(es)" tab appearing on a text-format's admin page when images are disabled. But that's a minor issue.
Comment #4
wengerkHappy it fix your issue !
You're right about the second point, I would appreciate your help if you could open another issue addressing this specific UI misbehaviour.