cannot use link to go to another imdb page; bounces back

This is a strange one that started happening a week or so ago and is intermittent.

• What I'm doing
  • I'm on the page for a tv episode, for example, it happened when I was on NCIS: The Inside Man
  • I click a link on the page.  When this is happening, any link I've tried causes this problem.  Most typically, I'm clicking on "Trivia" or the ">" that takes you to the next episode ("Good Cop, Bad Cop" in this case).
  • The page I want comes up.  It might be slow to draw or move up and down more than usual (the ad at the top causes this, I think as it draws bigger or smaller).
• What I expect:  The page to stop moving and then I can read it, etc.
• What actually happens:  The page doesn't stop moving long enough to read anything and then I'm suddenly back on NCIS: The Inside Man.  That is, the trivia page is gone and I'm back on the main page for that episode.
  • Clicking again has the same result.  It will not stay on another page.
  • I have not tried an external link.
  • Going to the Goofs page or to another episode page has the same result.
• Work around:  Open the link in another tab or another browser window.
  • Once I'm in a new tab, everything works normally.  I can then go back to NCIS: The Inside Man and the links will work, so I don't think it's cookies.  I haven't tried cleaning cookies.
• Environment:  I'm running on a MacBook Air with macOS 27.0.1 and using Safari 27.0.1.  I have not tried it in Firefox or any other browser.