anyone knows the reason why clients can't save any updates on the frontend?
When they add a new address or change password or any account info, after clicking save button it will redirect back to the previous page which is with nothing changed.
My Magento version is 18.104.22.168.
I've tried the most common solution which is adding form_key in customer page but not working.
And occasionally I found when disabling "Use Web Server Rewrites" in setting → Web → Search Engines Optimization can solve this problem but I need web server rewrites this function for SEO purpose. What should I do if I want to fix this problem while enabling "Use Web Server Rewrites"?