User logged out only on certain pages?

We have a blogs page, where, if the user is not logged in, we direct them to a login page. After which, they can come back to that page and SHOULD be authenticated. However, when they get back to just this particular page, they are NOT authenticated, while they are authenticated on every other page. 

Is SF just caching the logged out version of that page and displaying it again? Do I need to disable page caching for all pages? It seems to fix itself after either a few minutes, or if I re-publish that page. Thanks.

Hello Ryan,

You could try to stop the cache only for that Blogs page. This option is under:
Pages -> <your blogs page> -> Title & Properties -> Advanced Options -> Caching options -> No Caching
More details you could find in Configuring caching article.

Let me know whether the proposed solution helps.

Regards,
Svetoslav Manchev
Telerik