As mentioned in the other post on this topic the new Waves V13 plugins is not working in PreSonus Studio One Pro 5.4. The V13 plugins are not loading. I have tried absolutely everything Waves has suggested in order to fix it. It is still not working. Are you looking into this? I have a support case open for this. Super slow with no progress.
PreSonus support analyzed the logs and said that it was a Waves issue