WACK shows failed after all updates to VS2022 and Windows 11 including updated WACK

Question

I have 10 apps in the MS Store, called "Synthor". They have similar code but different data files. All of them were developed in Windows 11, Visual Studio, UWP VB. All (obviously) passed WACK tests before submission to the store. I recently applied all the available updates to Windows 11 and VS2022. Now every app fails the platform launch test and shows hangs and crashes, althought they all run fine of the local device, as they used to. I created an empty 'hello world' type app and that failed the WACK test too. I have another PC with Windows 10 and the latest VS2022 and everything passes the WACK tests if I transfer the apps to that device. So, what could be different about the Windows 11 PC that I use for development that does not pass the WACK tests? I looked everywhere and others have posted similar problems since 2016, but everyone seems to have a different way to solve the problem. None of those solutions worked for me. My conclusion: If you buy a new Windows PC, install the latest VS2022 on it, you will not be able to pass the WACK tests. Does this make any sense? Has anyone faced and solved a similar problem?

Answer 1

FAILED
Platform version launch
Error Found: The high OS version validation detected the following errors:
Cannot launch App
Cannot launch App
The app 15875TatahaKim.TheFirstSynthor_1.0.1.0_x64__9awr6hcx9ear6 failed platform version launch test.
Impact if not fixed: The app should not use version information to provide functionality that is specific to the OS.
How to fix: Please use recommended methods to check for available functionality in the OS. See the link below for more information.
Operating System Version

PASSED
App launch

FAILED
Crashes and hangs
Error Found: The crashes and hangs test detected the following errors:
Executable C:\Program Files\WindowsApps\15875TatahaKim.TheFirstSynthor_1.0.1.0_x64__9awr6hcx9ear6\Wackfailuretest.exe was detected by Windows Error Reporting and experienced a crash or hang.
Application 15875TatahaKim.TheFirstSynthor_1.0.1.0_x64__9awr6hcx9ear6 was detected by Windows Error Reporting and experienced a crash or hang.
Crash dump file C:\Users\SUGATA\AppData\Local\Microsoft\AppCertKit\Wackfailuretest.exe.5848.dmp was created by Windows Error Reporting and provides additional information.
Impact if not fixed: An app that stops responding or crashes can cause data loss and is a poor user experience.
How to fix: Investigate and debug the app to identify and fix the problem.
Debugging Store apps

Answer 2

Hello,

Welcome to Microsoft Q&A!

So the WACK test you mentioned means the local WACK test using the local WACK tool, right? If it is, then I have to say that the local WACK tool will be affected by many reasons of the local device. And it's hard to say what is the reason. That's why the local WACK test is optional. There is an online WACK test when you upload your app to the Store. The Store only take the result of the online WACK test as result. The local WACK test failed might not be a problem, but if the online WACK test failed, that will be a problem.

Thank you.

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