You may want to go straight to CDPR Support for this one:
Welcome to CD PROJEKT RED Technical Support! Here you will find help regarding our games and services, as well as answers to frequently asked questions.
support.cdprojektred.com
That's about as close to the issue as we can get, I think.
Just a few points:
1.) Did you download the update from the same region on the same account as the base game for CP2077?
2.) Are you sure the 2.3 update was fully applied?
3.) Did you ever play on PC and use mods of any kind (using crossplay to transfer saved games)?