I had previously posted regarding the persistent login loop issue in AbanteCart v1.4.1 on my live store. I received some suggestions (thanks to the contributors!) and have now tried several of those recommendations, but unfortunately, the problem still persists.
What I've Tried So Far:
Checked Session Creation
Session is successfully created after login (verified in debug logs and $_SESSION array).
customer_id, zone_id, etc. are set correctly.
Secure Cookie Handling
Set a secure, HTTP-only customer cookie using setcookie() inside ControllerPagesAccountLogin.
Cookie is visible in browser, path and domain are correct.
Session Loss After Redirection
On next request after login, session appears to be reset user is redirected back to login.
We checked .htaccess, index.php, and ensured no session reset is triggered in code.
But after redirection to account/account, session seems wiped.