Honestly I don't know how you found the Appx functionality as you say "so buggy". This is one of the IA features that I mostly used lately and I have not found so many problems as you say.
At any rate, error "180" is returned when the process is not able to create the APPX container.
Supposing you have correctly installed all required IA features and
using the latest IA X5 version (22.02), these may be possible causes of the error;
- the APPX cannot be signed using the certificate specified with the project. it needs a SHA-2 certificate.
If a certificate has been specified, you may try to disable the signature (Authenticode settings). If the APPX gets created, this means that exists a problem with the certificate.
- The APPX process uses a call to "MakeAppx.exe". This tool must be present under the "APPX\Bin" sub-folder of your IA X5 install directory.
If you still have problems, you may send your project to;
support@installaware.com .
Hope this helps you.
Regards