Links Not Showing Any Color or Underline

Anyone else having an issue where the classic editor doesn’t show links with a different color or underline when posting a blog? On the public side of the site, it shows the link fine but not when the admin is posting. Can anyone assist me with what could be causing the problem? Sometimes when I refresh the page the links appear for a second but then disappear.

The page I need help with: [log in to see the link]