I get today my second PreSonus plugin. Their plugins are VST3 and works in strange way - there is some kind of wrapper or whatever that shows as single plugin, then there is their main program that handle their plugins.
Anyway, when I was using only one plugin, everything was fine. After I activated second one - I see only first one on the list, but is not working (crashing Renoise). When I uninstall old plugin, I see new plugin (working) under old name in Renoise. I can use any of plugins, but not both when they’re activated at the same time.