No this is not the cause, because I just installed it today. It was already happening even before.
But as per your request, I tried deactivating it and still same issue.
I’m referring to this sample gallery (screenshot attached 6.png). It needs to be clickable similar to my other blog post gallery (older version probably using unyson or something) https://worthygains.com/san-felipe-zambales-video/ and it should open a popup (screenshot attached 7.png)