In the browser console I saw that it shall be a tinymce version conflict or so:
Consider using ‘dppx’ units, as in CSS ‘dpi’ means dots-per-CSS-inch, not dots-per-physical-inch, so does not correspond to the actual ‘dpi’ of a screen. In media query expression: print, not all, (-webkit-min-device-pixel-ratio: 1.25), (min-resolution: 120dpi) admin.php?page=rvy-revisions&action=view&revision=8344:1
Consider using ‘dppx’ units, as in CSS ‘dpi’ means dots-per-CSS-inch, not dots-per-physical-inch, so does not correspond to the actual ‘dpi’ of a screen. In media query expression: print, not all, (-webkit-min-device-pixel-ratio: 1.25), (min-resolution: 120dpi) admin.php?page=rvy-revisions&action=view&revision=8344:569
Deprecated TinyMCE API call: <target>.onInit.add(..) wp-tinymce.php?c=1&ver=4021-20140423:17
Failed to load resource: the server responded with a status of 404 (Not Found) http://www.xyz.de/wp-includes/js/tinymce/themes/advanced/theme.min.js
Failed to load: http://www.xyz.de/wp-includes/js/tinymce/themes/advanced/theme.min.js wp-tinymce.php?c=1&ver=4021-20140423:5
Has somebody any ideas against this …?
I’m not seeing this error with Revisionary 1.1.13 and WP 4.2.2. It could be a conflict with a TinyMCE customization plugin.
I also see no preview in the “Visual” tab of the editor. It is only editable in the “Text/html” tab.
I am not well versed in HTML, so would like to see revisions in the Visual tab of the editor box. How can this problem be fixed? Thank you.
Using WP 4.2.2 with Google Chrome. Also tried on Safari but still did not work.
Are you running any Editor customization plugins? If you activate your web browser’s developer view, does the Edit screen trigger any javascript errors?