Powershell Add-AppxPackage not working for standard user (only admin)

Hopefully this is the right place (sorry if its not). I am currently trying to side load an appx (UWP) in test kitchen. However it does not work for a standard user. When I set it to an admin account, it works (but that only installs the app for that admin user - I need it installed for a deescalated user). I suspect this is a bug in remote Powershell?

Output:

STDERR: C:\Users\....\AppData\Local\Temp\chef-script20181023-3108-f0qjq7.ps1 : Win32 internal error "Access is denied" 0x5 
       
       occurred while reading the console output buffer. Contact Microsoft Customer Support Services.

Code:

powershell_script 'Install Appx' do
     code 'Add-AppxPackage Example_1.0.0.0.appx'
     cwd 'C:\...'
     user "standardUserHere"
     password "password"
     sensitive false
end

Edit: The command also works on the box itself when I login as the standard user and it copy into powershell