If it is on android, you must go to settings again, and manually save the passwords, (don't worry, it's only one time! After this you will login automatically each time you visit the website.)
Step 1: Once you've launched Chrome, select 'Settings' in the menu.
Step 2: Scroll all the way down and click 'Advanced'.
Step 3: Once you see the 'Passwords and Forms' section, click on 'Manage Passwords'.
Step 4: At the top of the page, you'll see 'Offer to Save Passwords'. Make sure that is turned on. Now you’ll be prompted to save the passwords every time you log in a website with your account and passwords.
If it works, great!
Thanks but I'm on Ubuntu desktop, and could not find such option to add site credentials manually. – Milkyway – 2019-12-08T11:24:17.113
@Milkyway - You made no mention of the fact your OS is Ubuntu in the question. Questions should have all relevant information. – Ramhound – 2019-12-08T19:41:42.277