Thanks for helping me troubleshoot, Arcturus.
The cookies should be there, and 11 is right (turns out my ad blockers were blocking 6 of them, which tells me you don't have an ad blocker :), but I wanted to make sure they were there initially to see if your browser was storing them at all. And they should repopulate after you removed them and logged back in, so that's expected behavior as well.
I've made a couple changes to how sessions are validated that I hope will fix it, let me know if you still have the issue.