I have some very long posts and the back to top button isn’t featuring on all of these posts in mobile.
In desktop all appears ok.
Example page included below in priv box.
Thanks if you have any ideas.
It would be best to take a backup of your site before doing this.
One thing you could also try is to add this CSS through Appearance > Customize > Additional CSS to see if this is caused by an external code that changes the scroll behavior:
My bad, thanks Fernando. The TOC plugin is causing the page to stretch width and while set to 550 px it is not behaving so back to top button is being pushed out wide.
I’m onto the plugin people and will advise, thanks,