We discovered the problem was affecting many more soundsets than originally thought.
We implemented a new faster process to update those soundsets and that has now been executed for all official and community content.
You should now be able to install all official and community content again. Please let me know if there are any official or community content soundsets that are not installing.
Next up, we will be processing private soundsets.
There are many many more private soundsets than there are official. But if you find yourself unable to install your own private soundset, you can make a small change to it in the creator (e.g. change title, then change back) and that should put your soundset into the usual queue and it should be updated within ~15 minutes.