Title. Able to search and install on an iPad but not my Win10 PC.
Edit:
Issue is bigger than just GCP. The new PF2 sound-sets did the same things. I uninstalled, deleted all folders, deleted registry entries, rebooted and reinstalled.
The sound-sets now show up, however get an unable to retrieve manifests trying to download any of these. Old sets download fine. Same issue running as administrator.