Getting automatically logged in / out

I would definitely say it’s cache related.

Hi Gareth,
I am also getting a very similar issue. When a user logs in it takes them (by default) to their ‘your-profile’ page. Then if I go to the home page, the page displays that they are logged out. If I press the F5 key to refresh the page it then shows that they are logged in.
I have another page that does the same thing but all of my other pages seem to be ok.

Yes it does seem like a cache issue. I have, what I believe, turned off all server side caching but no luck.
I’m continuing to test with trial and error and will let you know if I have any luck.
regards, Peter.