My audio plugin makes no sound only on Zenbeats

Has anyone of you tested your plugin with Zenbeats?

I have developed my own plugin and now have it tested by my friends and families.
In most environments it has a good report but I’ve got one issue that it won’t make any sound on Zenbeats.
It recognizes the plugin but literally no sounds come out. Looks like the level indicator is hopping but, again, no sound.

Seems like Zenbeats is still small in number of users, so any info even like “same here” is welcome.