[Bug] Cant update any theme

[Fan4eGGG]

Before Reporting

• I found no existing issues matching my bug
• My issue is not caused by a theme
• My issue is not caused by a plugin

Describe the Bug

just clicking on update button appears this:

my log file:

[23:15:45.348] PIPX Starting Package Manager...
[23:15:45.358] PIPX checking for packages on Windows
[23:15:45.358] PIPX Installed packages:
[23:15:45.377] PIPX arrow==1.3.0 certifi==2025.11.12 cffi==2.0.0 charset-normalizer==3.4.4 cssutils==2.11.1 idna==3.11 millennium==5.2.3 millennium-core-utils==5.2.3 more-itertools==10.8.0 pip==25.3 psutil==7.0.0 pycparser==2.23 pygit2==1.16.0 pyperclip==1.9.0 PySocks==1.7.1 python-dateutil==2.9.0.post0 pywin32==308 requests==2.32.3 semver==3.0.4 setuptools==80.9.0 six==1.17.0 types-python-dateutil==2.9.0.20251115 urllib3==2.6.2 watchdog==6.0.0 websockets==15.0.1 wheel==0.45.1 winrt-runtime==2.3.0 winrt-Windows.UI==2.3.0 winrt-Windows.UI.ViewManagement==2.3.0
[23:15:45.379] PIPX All required packages are satisfied.
[23:15:45.379] PIPX Finished in 30.78 ms

soo, whats wrong?

Expected Behavior

want to update themes

Steps To Reproduce

...

Operating System

Windows

Anything else?

No response

[shane1039]

I'm getting this too. The log shows no errors either.

[shdwmtr]

Hello

Run the following in PowerShell, it will open Millennium's developer console.

& "$((gp 'HKLM:\SOFTWARE\WOW6432Node\Valve\Steam').InstallPath)\steam.exe" -dev

From there, try updating the theme. You'll likely receive a more detailed error message.

[Fan4eGGG]

Run the following in PowerShell

If I don't exit Steam, nothing happens when I enter this command. But if I exit, a Millennium window opens and something starts to happen...

[Fan4eGGG]

I found a new problem. After reinstalling Millennium, if I change my Steam account ("Settings - Change Account"), nothing happens. Steam simply won't open unless I reboot my PC.