Brainworx VST3 plugins not working in Cantabile

Hi all,

I am finding that none of the Brainworx VST3 plugins work in C3. VST2 work fine, but none of the VST3 versions produce any sound. For example:
1- in a blank project, insert a media player and load a song.
2- Insert any Brainworx VST3 effect, e.g. bx_greenscreamer
3- Route the MediaPlayer output to the BX plugin input
4- Route the BX plug output to your speakers

When I do this, there is no sound, and the meters on the BX plugin show no activity. These plugins work fine in other DAWs on the same PC. Other VST3s work in C3.

Anyone else?

Tom B