Hi @0901iain, thanks for reaching out to us!
This seems consistent with a Javascript conflict between Wordfence and another plugin, which looks like a similar problem to one we see with new customers unable to accept the terms and conditions popup after a fresh install.
I would try disabling all plugins except for Wordfence and reverting to a default theme such as Twenty Twenty-One. Does the behavior still present itself when Wordfence is the only plugin enabled?
If not, re-enable your plugins one-by-one and finally your theme to see when it starts reoccurring, and that will be the source of the problem. You can install a maintenance mode plugin during this time if site visitors are likely to be affected. Browser extensions can also sometimes interfere with these pages so disabling those at the same time, or using a different browser to your default may be an idea during this period of testing too!
Also ensure that all of your plugins etc. are up-to-date.
Let me know how you get on!
Peter.
