Indeed it is that problem. User benwiggy figured it out and discussed in an internal beta area of the forum.
The Steinberg Download Assistant is running with different user rights than the Steinberg Library Manager and that’s where the trouble comes from. To make it more short, here’s what benwiggy wrote as a conclusion:
The SDA already has sufficient permissions. The problem is with the SLM. Running the app as root might be a solution, but not easy or wise.
I think I have pinpointed the problem. The SLM will install the vstsounds if the folders have the group “staff”, and not “admin”, nor “wheel”. Even if the owner is root, and staff is read only!! (This is very weird, as I thought staff was all human users; so why doesn’t ‘admin’ work too?)
Can SDA or SLM correct this?
Otherwise, you’ll have to tell people to do:
sudo chgrp -R staff /Library/Application\ Support/Steinberg/Content/*
@mikeheels , so could you please open a Terminal window and put in the from benwiggy mentioned command just before and see if that fixes your problem?