9.13 does not start on Windows 11

[twif1956]

Updated from 9.12 to 9.13 - waiting for server displays, followed by a blank screen, then application closes.
Was able to start up 1 time by running as administrator, but after that 1 time running as administrator did not work.
Uninstall and re-install 9.12 results in application starting up normally.

I found this is one of the log files:

2026-03-12 09:01:17,616: ERROR pgadmin: 'QueryToolCommand' object has no attribute 'row_filter'
Traceback (most recent call last):
File "C:\Program Files\pgAdmin 4\python\Lib\site-packages\flask\app.py", line 917, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Program Files\pgAdmin 4\python\Lib\site-packages\flask\app.py", line 902, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args) # type: ignore[no-any-return]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "C:\Program Files\pgAdmin 4\python\Lib\site-packages\flask_login\utils.py", line 290, in decorated_view
return current_app.ensure_sync(func)(*args, **kwargs)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "C:\Program Files\pgAdmin 4\web\pgadmin\authenticate\mfa\utils.py", line 304, in inner
return mfa_enabled(
if_else_func(
...<12 lines>...
execute_func
)
File "C:\Program Files\pgAdmin 4\web\pgadmin\authenticate\mfa\utils.py", line 171, in mfa_enabled
return execute_if_disabled()
File "C:\Program Files\pgAdmin 4\web\pgadmin\authenticate\mfa\utils.py", line 297, in execute_func
return wrapped(*args, **kwargs)
File "C:\Program Files\pgAdmin 4\web\pgadmin\user_login_check.py", line 22, in wrapper
return func(*args, **kwargs)
File "C:\Program Files\pgAdmin 4\web\pgadmin\tools\sqleditor_init.py", line 311, in initialize_viewdata
command_obj.set_filter(old_trans_obj._row_filter)
^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'QueryToolCommand' object has no attribute '_row_filter'. Did you mean: 'can_filter'?
2026-03-12 09:01:17,844: ERROR pgadmin: 'QueryToolCommand' object has no attribute 'row_filter'
Traceback (most recent call last):
File "C:\Program Files\pgAdmin 4\python\Lib\site-packages\flask\app.py", line 917, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Program Files\pgAdmin 4\python\Lib\site-packages\flask\app.py", line 902, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args) # type: ignore[no-any-return]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "C:\Program Files\pgAdmin 4\python\Lib\site-packages\flask_login\utils.py", line 290, in decorated_view
return current_app.ensure_sync(func)(*args, **kwargs)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "C:\Program Files\pgAdmin 4\web\pgadmin\authenticate\mfa\utils.py", line 304, in inner
return mfa_enabled(
if_else_func(
...<12 lines>...
execute_func
)
File "C:\Program Files\pgAdmin 4\web\pgadmin\authenticate\mfa\utils.py", line 171, in mfa_enabled
return execute_if_disabled()
File "C:\Program Files\pgAdmin 4\web\pgadmin\authenticate\mfa\utils.py", line 297, in execute_func
return wrapped(*args, **kwargs)
File "C:\Program Files\pgAdmin 4\web\pgadmin\user_login_check.py", line 22, in wrapper
return func(*args, **kwargs)
File "C:\Program Files\pgAdmin 4\web\pgadmin\tools\sqleditor_init.py", line 311, in initialize_viewdata
command_obj.set_filter(old_trans_obj._row_filter)
^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'QueryToolCommand' object has no attribute '_row_filter'. Did you mean: 'can_filter'?

====================================================================

pgAdmin Runtime Environment

Python Path: "C:\Program Files\pgAdmin 4\python\python.exe"
Runtime Config File: "C:\Users\Tim\AppData\Roaming\pgadmin4\config.json"
Webapp Path: "C:\Program Files\pgAdmin 4\web\pgAdmin4.py"
pgAdmin Command: "C:\Program Files\pgAdmin 4\python\python.exe -s C:\Program Files\pgAdmin 4\web\pgAdmin4.py"
Environment:

• ALLUSERSPROFILE: C:\ProgramData
• APPDATA: C:\Users\Tim\AppData\Roaming
• CommonProgramFiles: C:\Program Files\Common Files
• CommonProgramFiles(x86): C:\Program Files (x86)\Common Files
• CommonProgramW6432: C:\Program Files\Common Files
• COMPUTERNAME: RAVEN
• ComSpec: C:\WINDOWS\system32\cmd.exe
• DriverData: C:\Windows\System32\Drivers\DriverData
• ELECTRON_ENABLE_SECURITY_WARNINGS: false
• GOPATH: C:\Users\Tim\go
• HOMEDRIVE: C:
• HOMEPATH: \Users\Tim
• LOCALAPPDATA: C:\Users\Tim\AppData\Local
• LOGONSERVER: \RAVEN
• NUMBER_OF_PROCESSORS: 96
• OneDrive: C:\Users\Tim\OneDrive
• OPENSSL_ROOT_DIR: C:\FireDaemon_OpenSSL
• OS: Windows_NT
• Path: C:\Program Files\pgAdmin 4\runtime;C:\Program Files\FireDaemon OpenSSL 3\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\WINDOWS\System32\OpenSSH;C:\Library\GCC_15.2.0_MINGW64_13.0.0_UCRT\mingw64\bin;C:\Program Files\PuTTY;C:\Users\Tim\develop\flutter\bin;C:\Program Files\Git\cmd;C:\Program Files (x86)\Incredibuild;C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit;C:\Program Files\CMake\bin;C:\Program Files (x86)\WinSCP;C:\Program Files\NVIDIA Corporation\NVIDIA app\NvDLISR;C:\Program Files\PowerShell\7;C:\Program Files\Go\bin;C:\Users\Tim\AppData\Local\Microsoft\WindowsApps;C:\Users\Tim\AppData\Local\JetBrains\Toolbox\scripts;C:\Users\Tim\go\bin
• PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
• PGADMIN_INT_KEY: 22f1440a-895a-405a-9b3f-54b48c157d4c
• PGADMIN_INT_PORT: 57397
• PGADMIN_SERVER_MODE: OFF
• POWERSHELL_DISTRIBUTION_CHANNEL: MSI:Windows 10 Pro
• PROCESSOR_ARCHITECTURE: AMD64
• PROCESSOR_IDENTIFIER: Intel64 Family 6 Model 85 Stepping 4, GenuineIntel
• PROCESSOR_LEVEL: 6
• PROCESSOR_REVISION: 5504
• ProgramData: C:\ProgramData
• ProgramFiles: C:\Program Files
• ProgramFiles(x86): C:\Program Files (x86)
• ProgramW6432: C:\Program Files
• PSModulePath: C:\Program Files\WindowsPowerShell\Modules;C:\WINDOWS\system32\WindowsPowerShell\v1.0\Modules
• PUBLIC: C:\Users\Public
• PYTHONDONTWRITEBYTECODE: 1
• SystemDrive: C:
• SystemRoot: C:\WINDOWS
• TEMP: C:\Users\Tim\AppData\Local\Temp
• TMP: C:\Users\Tim\AppData\Local\Temp
• USERDOMAIN: RAVEN
• USERDOMAIN_ROAMINGPROFILE: RAVEN
• USERNAME: Tim
• USERPROFILE: C:\Users\Tim
• VS140COMNTOOLS: C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\
• windir: C:\WINDOWS

---

Total spawn time to start the pgAdmin4 server: 0.012 Sec
2026-03-12 09:12:02,969: WARNING werkzeug: Werkzeug appears to be used in a production deployment. Consider switching to a production web server instead.

• Serving Flask app 'pgadmin'
• Debug mode: off

---

Total time taken to ping pgAdmin4 server: 9.089 Sec

Total launch time of pgAdmin4: 9.712 Sec

Application Server URL: http://127.0.0.1:57397/?key=22f1440a-895a-405a-9b3f-54b48c157d4c