Why am I still asked to login to Ubisoft when my Ubisoft account is connected to my NVIDIA account?

This can happen for a few reasons
 

• If your Ubisoft account was connected from a 2^nd GeForce NOW account. To fix, just disconnect and reconnect to your Ubisoft account. 
• Launching an Ubisoft game through Steam. This is not supported, although you can ask Steam to remember your login and password on GeForce NOW..
• Launching an Ubisoft game through Epic, without having your Epic and Ubisoft accounts linked. To fix, link Epic Games and Ubisoft Accounts.
• Some Ubisoft games still require you to login to your Ubisoft account even with account linking enabled. Those games are:
• Anno® 2070
• Assassin’s Creed® Brotherhood
• Assassin’s Creed® Revelations
• Assassin's Creed® Unity
• Assassin’s Creed® III
• Assassin’s Creed® IV Black Flag™
• Assassin’s Creed® IV Black Flag™ - Gold Edition
• Far Cry® 3
• Far Cry® 3 Deluxe Edition
• Might & Magic® Heroes® VI
• The Settlers® 7: History Edition
• Tom Clancy’s Splinter Cell® Blacklist™
• Tom Clancy’s Splinter Cell® Blacklist™ Deluxe Edition