Same here, UK PS4 disc copy, UK PS5 disc version and not able to access ps5 upgrade but I’m aware friends who have digital version of WDL bought from you directly have been able to upgrade, do you have a timeline for a potential fix or update us on what is causing it?
I'm also having this problem with both Watch Dogs Legion and also Assassin's Creed Valhalla. Both games bought from Argos in the UK and the PS5 bought from Amazon UK. Was really looking forward to playing these on my new PS5 so really disappointed with Ubisoft. Both Borderlands 3 and No Man's Sky updated OK so obviously an issue with Ubisoft.