Well i know how frustrating it is to see the same admin login page after you click on “Sign In” button and instead of getting the admin dashboard you are served with the same login page without any errors.
So this thing works for me as after upgrading to 2.4.4 i was not able to login to the admin dashboard even after clearing the cookies, trying in incognito mode, Trying with different browsers. It doesnt even work.
So this thing came to my rescue.
I just ran this commands and it worked again
“php bin/magento config:set system/security/max_session_size_admin 2560000”
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