Add known issue with Windows PowerShell adapter

Author: Gijsreyn

docs/troubleshooting/known-issues.md

@@ -146,6 +146,39 @@ When executing `dsc.exe` commands in Windows PowerShell:
 - Use `ConvertTo-Json` without the `-Compress` parameter.
 - Consider using PowerShell 7+ for improved JSON handling compatibility.
 
+## Zero results when listing resources with Windows PowerShell adapter
+
+When running `dsc resource list --adapter Microsoft.Windows/WindowsPowerShell`, you
+may see zero resources returned. In trace or debug logs, an error like the following can
+appear: "Cannot bind argument to parameter 'Path' because it is an empty string."
+
+### Problem details
+
+This issue occurs when the `PSModulePath` environment variable ends with a trailing path
+separator (`;`). The PSDesiredStateConfiguration v1.1 module doesn't handle the empty path
+segment and throws an error while enumerating modules, which results in zero resources being
+listed by `dsc resource list`.
+
+### Resolution steps
+
+Remove any trailing path separators from `PSModulePath` so there are no empty entries:
+
+```powershell
+# Show current PSModulePath entries (note any empty items at the end)
+$env:PSModulePath -split ';'
+
+# Remove empty entries and rejoin (session only)
+$env:PSModulePath = ($env:PSModulePath -split ';' | Where-Object { $_ -ne '' }) -join ';'
+
+# Re-run the listing
+dsc resource list --adapter Microsoft.Windows/WindowsPowerShell
+```
+
+### Recommendation
+
+Avoid trailing semicolons in `PSModulePath` variable. Ensure all path segments are non-empty 
+to prevent PSDSC 1.1 from encountering empty paths during module discovery.
+
 ## See also
 
 - [Microsoft Desired State Configuration overview][04]

powershell-adapter/Tests/native_and_powershell.dsc.yaml

@@ -2,14 +2,15 @@
 # Licensed under the MIT License.
 
 # Example configuration mixing native app resources with classic PS resources
+# The example assumes you have a DSC resource module named TestFileDscResource and PowerShellGet v2.2.5 installed in C:\Program Files\WindowsPowerShell\Modules
 $schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
 resources:
 - name: Get info from classic DSC resources
-  type: Microsoft.DSC/PowerShell
+  type: Microsoft.Windows/WindowsPowerShell
   properties:
     resources:
     - name: Get PS Repository Info
-      type: PowerShellGet/MSFT_PSRepository
+      type: PowerShellGet/PSRepository
       properties:
         Name: PSGallery
     - name: Check File