VST3 version of instrument not sending any audio

Hello! I'm on the most recent stable versions of both server and client. When I use the vst3 version of Sampletank 4 on the erver there is no sound on the client side no matter what I do. The vst2 version works fine. other vst3 instruments seem to work. I can't figure out what's wrong but I also can't think of any other settings to tweak. Thank you for any help!