@josecortes I also am having this same problem. I just downloaded Opera for the first time and am excited for all of the features but this is make or break for me every website I go to I have to get my phone out and see what email I used as a user name and the password. I am going to write what I do incase it differs at all. I go to settings > Privacy & Security > Autofill > Password Manager > Saved Passwords I Then Click import passwords it asks for my Opera password I enter it correctly I then choose the CVS file I created it says
Import passwords
373 passwords imported to Google Password Manager for
Consider deleting Passwords.csv, so others who use this device can't see your passwords
I click Done box and there is no passwords in Password Manager?? I have tried resetting everything still nothing.