Cubase 10 halion sonic se3 - can't hear some voices

Years ago, I upgraded from Cubase Artist 6 to 10.0.6 Pro. I have no access to Artist 6 anymore. When I open many of my projects, I get the attached popup.

I found that some Halion Sonic SE3 (HSSE3) instruments or voicings can’t be heard. Examples include MelloStrings, Double Bass, Backing Section, Hard Grand Piano, Ambient Kit, Cello Duo and others. I’m not missing any actual audio files such as wav. I’m only missing voicings with Halion Sonic tracks.

There’s no issue creating a new track and HSSE3 will work great with available voice options.

I am worried that I’m missing a bunch of voices/instruments. I also want to make sure my VST plugins are all where they should be.

This has been driving me crazy. Hopefully, someone can help me figure this out.

Sorry, I have no solution to this. In fact I have the same problem. It just occured on day.

I have tried to completely erase Cubase10 and reinstalling from scratch. Some sounds still works in old recordings but it´s impossible to change sound. There are no sounds available!!!

Please, let me know if you solve the problem. :slightly_smiling_face: