Hello, after a user logs in, they are still prompted to login over and over again. Only after a repetitive login is when the user is finally logged into the forum. What could be the reason?
Please try to deactivate plugins one by one and check after each deactivation, this may be a conflict with other plugins.
Also this maybe cache plugin conflict. If you have a cache plugin please remove/exclude forum page from caching. wpForo has a built-in cache system, you should not use other cache plugins if you have some issue.
My user is experiencing the same issue. He tries to answer questions on the forum is prompted to reenter login information. I seems like the problem started after adding YouTube videos to the site in Gutenburg Word Press. I am going to see if my hosting company can disable a APCu Object Cache drop in plug in.