Altiverb 7

I’m having some troubles using Altiverb 7. Seems like the plugin is swallowing the audio. No input, no output.
The weird thing is that it’s not a consistent issue, sometimes it works, sometimes not.
Anyone having this issue ?
OSX 10.9.5, Altiverb 7.2.4.

Yes, there is some problem with Altiverb 7 and Cubase pro 8.

If you have an Altiverb on an rec armed/monitor enabled track, you will get silence.