Front-end logging out not working

Hi @all, I ran into exactly the same issue. I’ve tested with 8.0, 8.1 and 8.2 and in all versions I have this issue. I see, that the kirby-session cookie does get removed on the first logout, but not on any additional lockout. As soon as I delete the session cookie manually, the user is logged out as expected (obviously).

My client is hosting at manitu.de. Any suggestions?