Overbridge + Heat = playing back (very) out of time/ Crazy distortion

I’m using: Overbridge 1.15 + Analog Heat (latest OS) , OSX 10.9.5, Live 9.5

Overbridge works well at first and then some crazy (non intentional) distortion will come in and take over the channel…sounds terrible obviously. Also after a few minutes of playback the channel with Heat on it played back roughly a 1/4 note late making it unusable.

This is a 'real world ’ test of Overbridge using the Analog Heat. Project is large with 80 or some channels and lots of FX. Not maxing CPU at all. Heat is connected via an electron USB cable into its own USB port on a macbook pro.

If it worked it would be extremely useful - obviously it still has teething issues.