Hi @PowerMaverick,
What version of Solution Packager are you using? I am using 9.1.0.45.
I gave this a try just now and it appears to be working as expected - steps I followed below:
1. Install tooling
I installed the tooling that contains Solution Packager use this PowerShell command found on the docs website.
2. Export unmanaged solution
I created an empty solution and included a simple text PCF control I made.
3. Unpack unmanaged solution
I ran the below command from the Solution Packager (../Tools/CoreTools/) directory to unpack the solution ZIP file I extracted from my environment.
.\SolutionPackager.exe /action: Extract /zipfile: "C:\temp\PCF_TestSolution.zip" /folder: "C:\temp\PCF_TestSolution_Extracted"
This resulted in the below structure in my specified extract folder:
📁PCF_TestSolution_Extracted
|-📁Controls
| |-📁rsnet_RyanSpain.NET.TextInputControl
|-📁Other
4. Pack extract solution contents
Using the very same command with Pack substituted in for Extract, I packed the above contents back into a solution ZIP file.
.\SolutionPackager.exe /action: Pack /zipfile: "C:\temp\PCF_TestSolution.zip" /folder: "C:\temp\PCF_TestSolution_Extracted"
I was able to successfully import the packaged solution file into my environment without issue.
Hope this helps in some way or form!
Ryan