Since I installed - uninstalled and re-install cubase pro 8.5 :
(first I haven’t sound in cubase pro 8.5 and 8.0.30 and I uninstalled cubase 8.0.30 and reinstalled cubase pro 8.5 only)
1- I created a new project in cubase 8.5 64bit.
2- I imported an audio file and play it ok
3- I created a padshop instrument VSTi track and no sound.
I verified the output are ok and activated.
Thanks for help