保存后丢失Magento客户会话

I've updated to the latest Magento 1 release (1.9.4.1) and I've noticed that whenever I edit my details, after logging in, the session is recreated and I am redirected to the home page. has anyone else experienced this issue, or know how to resolve it?

I've tried disabling all modules (local and community), but the problem still remains.

I've also installed a blank version of Magento, but I get the same results.

Steps to reproduce:

1. Log in to a customer account from the frontend
2. Navigate to account information page (customer/account/edit/)
3. Save account

Repeat the above steps a couple of times and eventually the session is disregarded and a new session is created in var/session, which results in redirect to home page.