Session Cookie Not Persisting

Hey everyone,

I work with quite a few YII2 codebases, but I’m running into a new issue that I’ve never seen before, and can’t seem to find any questions on.

After logging in, upon any route change, it appears that my user’s session cookie is being removed, and I am then redirected back to the login page. Has anyone ever experienced this?

I’ve verified the cookie is indeed being set, but like I said, on any route change (or even refresh), the cookie is just disappearing from the application storage.