Various games stuck at signing in.

Can you try creating a new local administrator user in your PC and try from there?
https://support.microsoft.com/en-us/windows/cre...

If that doesn't work, did you tried this?
Press Windows + X, then click on Windows Powershell (Administrator)

Then type or copy/paste this command and press enter:

Get-appxpackage Microsoft.XboxIdentityProvider | Remove-AppxPackage

Restart your PC and install the recently deleted app:

https://apps.microsoft.com/store/detail/xbox-id...

Finally go to Windows Settings > Apps and Features > Xbox app > Reset and Repair, then restart your PC and give it a new try.

If that doesn't work please also try these tutorials:

https://support.microsoft.com/en-us/windows/fix...

https://support.microsoft.com/en-us/account-bil...

Tried it. Also tried

Try the following options for Windows 10/11:
1. Go to Credential Manager (https://support.microsoft.com/windows/accessing...) > Windows Credentials (not the Web option), select XblGrts|DeviceKey and remove.

2. Go to Settings > Accounts > Email & accounts. Select your account with the issue and verify that the ‘Apps need to ask me to use this account’ setting is enabled. This would especially help if you have multiple accounts as you would have the option to choose the correct account on startup, but you can always change it back to the automatic option if you prefer. You can also try to remove the account from here and re-add it later.

3. Follow this file path: C:\Users\[Your Username]AppData\Local\Packages\Microsoft.XboxIdentityProvider_cw5n1h2txyewy\AC\TokenBroker
Delete the Accounts and Cache folders, which will be deleted from the Xbox Identity Provider

Note that the highlighted code in this file path depends on your system so may vary.
If you don’t see a particular folder, then confirm there’s no search filters applied and select ‘show hidden items’, or you can just search for the folder in the search bar.
Restart your PC after trying the above steps, so that these properly take effect next time you sign in. It may also help to then reset and repair and/or uninstall and reinstall the Xbox apps where this error occurs."

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.
I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this LEFTHANDOFGAWD

Just to confirm, is this happening on Windows?
If yes, please try this:

Press Windows button and type Services

On Services App from the list of results, press right-click and run it as administrator

Scroll to the bottom and find the following services:

IP Helper
Xbox Live Auth Manager
Xbox Live Game Save
Xbox Live Networking Service
Gaming Services

And do this with each of the services listed above:

Right-click over the service and select Properties.
Find the Startup type section and make sure it’s set to Automatic (if not, change it to automatic)
If the service isn’t started, click Start to start the services

Restart your PC and try again.

If you already tried that, please tell me what else did you tried?
In that way I can advise you different things or how to proceed

I am still stuck on the SA Dashboard despite various chats to support.

For anyone who is interested, the xboxAchievement thread about this issue is here :

www.xboxachievements.com/.../showthread.php