Windows 10: What is causing this? I am not allowed to play a newly released game. Gamepass PC.

So downloaded a new game called GunGrave G.O.R.E and I currently have a gamepass subscription as well, it doesn't expire until the 30th of November. I have windows updated to current and everything else as well updated that I could think of.Now when I run it, I get both the messages down below. Also the error I apparently get is 0x8015DC12The first one is what I get when trying to use my account I always use for gamepass games. Never had this issue before.This second one is what I get when the game still launches for some reason after I hit cancel.Currently, I have no idea what in the world i

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Gamepass games on PC not working

I have a valid gamepass ultimate subscription and recently tried to play gamepass games on PC. I downloaded the app and installed Crosscode and The Messenger. When I try to launch the games through the Xbox PC app, the app minimizes and nothing happens.
When I try to launch the games through the start menu, it just directs me to the Windows Store to download the Xbox App, which shows that I've already downloaded it. Games I have previously downloaded from before the Xbox App came out, such as Forza Horizon
4, seem to work ok. What can I do to get the newer games working?

 

Device limit and Gamepass

I wanted to play Crusader Kings III on gamepass, but when i'm going to launch the game, it says that i have to uninstall some of my devices to play the game. I have no other devices with the game or windows installed, so this has no sense.

Im affraid i wont be able to play it

Edit: Nevermind, the game has not been released yet. That was the problem

 

Games with gamepass redirect on store page for the gaming service instead launching games

As per title, i can't play games with gamepass.
I recently had other problems installing via gamepass, and solved them with the "wsreset -i" command (suggested here in the forum)

I've tried already:

reinstall or reset game services, both from settings / app and from PowerShell

windows update has no updates

restore xbox app and store

Update: deleting with start unlocker all the folders of all my games, and downloading all of them again fixed the problem,