Do you have any caching active?
Don’t cache the UM Pages.
No I don’t have any caching active. My site in the local server now. Without any caching plugins. I also don’t see this file into Media Library. Nothing problem in Console. html DOM didn’t change http://joxi.ru/5mdZVj0HJ4WjLA after uploading
Try to do a Theme/Plugin conflict test explained in this UM guide:
Ok, thanks I got that problem in a template what I created.
add_filter( 'option_show_avatars', '__return_false' );
I deactivated standard Gravatars avatars… and this important for working UM