Quick answer: This is a bug with inadvertently sustained notes in Cubase when run in Windows only. Turn off Send meta messages in Liquid Notes.
Unintentionally sustained noted in CubaseInadvertently sustained notes in Cubase when running it on Windows is a known bug related to it receiving meta messages from another application. It doesn't apply to other operating systems.
To fix the problem please proceed as follows:
- Open Liquid Notes.
- Go the the menu, and select Settings.
- In that dialog box, select the tab Routing and deactivate Send meta messages.
This will fix the problem of inadvertently sustained notes in Cubase. There is no need to restart Cubase or your machine!