I am still running WordPress 4.9.9 on my active website.
Yesterday, I upgraded my “test site” to WordPress 5.1 to begin experimenting with the Gutenberg editor. After upgrading, 6 social media buttons were displayed on the top and bottom of each post. These were NOT previously displayed. I do not have any social media buttons activated through Swift or with a plugin.
This is very strange. I do not know if this is a problem with Swift or with WordPress. I thought I would check with you first before I contact WordPress.