why are some games suddenly failing to sign in ?

Hi there. My name is Ron, I'm an independent advisor. I will be more than happy to help you.

Please try the steps one at a time to resolve the issue.

Solution 1: Repair the Gaming Services app.

Please go to Settings > Apps > Apps Features. Select Gaming Services, then click Advanced options. Click the repair button, try launching the game again using the Xbox app and see if it works.

Solution 2: Uninstall and reinstall the Gaming Services App

Select the Search icon on the taskbar, type powershell, right-click on Windows PowerShell, and then select Run as administrator.

In Windows PowerShell, type the following command and press Enter:

get-appxpackage Microsoft.GamingServices | remove-AppxPackage -allusers

In the same window, type the following command and press Enter:

start ms-windows-store://pdp/?productid=9MWPM2CQNLHN

Install the app on that page and select Yes when you receive the User Account Control (UAC) prompt.

Restart your device and try to install the game again.

Solution 3:

Please open the PowerShell in admin mode and paste the following below:

Get-AppxPackage -AllUsers| Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}

Okay, I don't know why, but suddenly when I tried to start the game for the XXXth time it let me sign in randomly. I'm in now.

It could be the HDMI port or related board has suddenly failed.

Yeah I have also noticed this

I noticed I suddenly had more storage than usual and when I tried to play some games, I was surprised to see I need to install it. Since I had have an external drive, I thought my drive was failing

Yea unfortunately thats just somehow how technology is.

It can fail suddenly without warning