Sometimes recently, I'll click a game page and instead be sent to the index page, fully logged out. There doesn't seem to be a pattern as to which pages do this - I've noticed it when clicking the chat, Quest Hub, Explore, and others that I didn't take note of. This is while actively playing the game, so my account hadn't timed out. Not majorly affecting gameplay, but thought it was worth a mention!

I've only noticed this on mobile, which I play through Chrome on a Samsung.