Don't think changing the firmware will help. The full V5 is now available, but there were only a few changes from the beta.

I assume this happens on all presets.

You don't  say what you are connecting the outputs to – if you exchange these, does it make any difference ?

My guess is that it is something at your end, but there is an outside chance that it is a hardware fault.  If you think this is the case, support@eventide.com