Icy9ptcl

Hi. I've got a same problem today with the latest version and resolved the issue: maybe try it out.

Note that my envilonment is slightly different from yours.

• Windows 11 Home

• Minecraft launcher version is 2.2.10322 (latest as of now)

• Installed Xbox app as well as Xbox Game Bar.

0. I had the following problem:

•  Minecraft Launcher says "Something went wrong" and shows only PLAY DEMO button, on Java Edition.

• I am signed in with MS account

• The upper-right corner of MS account icon shows a broken image icon.

• I can sign in with MS account and you can download demo game, though I can't play the paid version.

• Either cannot sign in on Xbox app or the app continuously shows sign in dialog and closes, then either crashes or somewhat succeeds to sign in

• Xbox Game bar says not signed in

Here are what I tried:

1. Update the following apps from MS Store:

• Xbox

• Xbox TCUI

• Xbox Game Bar

• Minecraft Launcher

I was not really sure what app was causing the problem so I made sure all apps were up to date. Also this method may contain dangerous or unnecessary steps.

2. Read your log file.

If Minecraft Launcher app is NOT open:

Hit Windows + R key and type
%AppData%\.minecraft\launcher_log.txt
and hit enter.

If Minecraft Launcher app is open:

Start Windows Powershell and run (hit enter) this command:
Get-Content "C:\Users(Your username)\AppData\Roaming\.minecraft\launcher_log.txt" -tail 0 -wait

You will see the launcher log file. Find a line like this:

Unhandled HRESULT passed from Xal: 80080300

If you saw exactly the same text, you have the same problem.

3. Log out completely from Minecraft Launcher.

Log out from your account in the launcher and CLOSE THE LAUNCHER. Seems like this is an important step so wait a few seconds before you proceed to the next step.

4. Open Xbox app and try to sign in.

You should see your user icon (or a icon of a person) so click on it and click settings. Then click SIGN IN in the section; Something like "This account will be used in Xbox app" is written above the button.

Xbox app might get stuck or crashes, but try several times. I gave up at some point and proceeded to the next step: Reset.

If you were able to sign in, try again on Minecraft Launcher. If not go to the next step.

5. Open Xbox Game Bar and sign in.

Hit Windows + G key, and find settings(gear) button. It's located on the other side of Xbox logo in the widget bar.
Choose "Account" and try to sign in. I didn't succeed at this point.

*6. *Dangerous: Reset Xbox-related apps.

Hit Windows + I key to open Settings. Go to "Apps and Features" then find Xbox apps (I had 3 of them, see Step 1).
If you are on Windows 10, click on the app.
If you are on Windows 11, click the … on the right part of the app item and go to "options".

Find the "Fix" button and click it. Then try the step 4 and 5. Also try starting Minecraft Launcher and see if the problem is fixed.
If it doesn't work, find the "Reset" button and click it. Note that you will have to sign in again on that app; also some data may be lost. At least I confirmed this does not affect screenshots, recordings, and Minecraft data.
Then try the step 4 and 5 again. Also try starting Minecraft Launcher.

My problem was fixed at this point. After resetting all Xbox related apps and restarting Minecraft launcher, it's back once again.

7. Dangerous: reset Minecraft Launcher.

Make sure to backup %AppData%/.minecraft directory before proceeding.

Rename your {{%AppData%/.minecraft }} to something else. For example .minecraft-WIP. This will temporarilly make your .minecraft directory invisible for Minecraft Launcher and Minecraft: Java Edition so your config will be reset.
You can get your worlds, configs back again manually. Just restore from your backup.

Try to start Minecraft Launcher. Moving .minecraft directory forces Minecraft Launcher to download its necessary files as well as game libararies so this will take some time.

If you can't fix the problem yet, try resetting Minecraft Launcher app.
Close Minecraft Launcher and do the similar thing of step 6.

Hope this helps.

On MC 1.17.30 (Windows 10 Edition) the similar issue remains for Japanese language; Font is still too small and thin.

Here are some screenshots (comparison) of GUI scale -1 and 0

GUI Scale 0 (the bigger one)

Note: Your gamer tag comes in the black area

↑ Chat GUI. As you can see my player name and Japanese chat have different font sizes

I can "read" better but it's still thin. This is what I can see after sending message

GUI Scale -1 (the smaller and this is what I used to play with)

They do look large but they aren't at all. The actual size is approximately 4 mm on my FHD screen.

btw the window size is 1200x900. I'll update this comment for more detailed info later!