In the past I used HA + virtual singer quit a lot. I now restarted to use it again. I did a few songs and it worked quite well. I imported xml files and also tried to import nwc files. But when continuing to use virtual singer I can not display it any more. Using menu scripts/virtual singer/activate-deactivate vs nothing happens. while previously VS appeared and disappeared. But no singing. What do I have to do to get it working again.