I too am having the same issue trying to install the HD 500x “ Vintage Pack” it says the “drivers are installed along with the “USB software” but when you go tthe License Manager, it doesn’t show anything and does not appear to be communicating with the Pod HD. Have an open ticket and they tell me to do things that I’ve already tried.
When they say give permission, they are speaking of going to System Prefernces, Keyboard, then make sure if the “Allow all tools” is checked, and that you check “Allow Apple, and identified Developers” is checked.. not just “Apple”, did that too still no luck. Going to try once more. If it doesn’t work I’m returning the vintage pack. Hope this helps, a little.
Harleymon