Vimeo Embedded Video Issue

I run a membership site that plays videos embedded from Vimeo in a portfolio format. Sometime in the last couple weeks when clicking on a video the error message “The image could not be loaded” appears.

When using the WordPress video player everything works fine, but none of the embedded videos seem to work. In the developer tools, when click on a video a 404 error is shown after the GET request. This is said to be related to privacy and permissions, but everything is fine on the Vimeo end. It seems to be a plugin issue.

Please advise if you have any ideas. I cannot attach a link to the site problem as it is a paid membership page.