When running ACF Pro inside your theme rather than as a plugin, the Tiny MCE script doesn’t seem to abide by any path filtering when it is included in the page. For example, if I set this in functions.php:
and then try to load a WYSIWYG field through ACF on a WP admin page it 404s looking for plugin.min.js
I believe this only happens when WP is installed in a subdirectory. On post.php WordPress is looking for this file http://example.com/wp-content/themes/ThemeName/advanced-custom-fields/inc/tinymce/plugins/code/plugin.min.js when it should be looking for http://example.com/SUBDIR/wp-content/themes/goldenrule/advanced-custom-fields/inc/tinymce/plugins/code/plugin.min.js which is obviously causing major issues. Any help in getting this resolved or getting around it would be much appreciated.