sACN New show default

Hi,
I'm running s/w 3.3.1 (b1188) when I start a new show by default sACN universe 1 + 2 are outputting and have different priorities already set.
I've looked at the release notes for s/w 3.4 and don't see this mentioned.

Can someone let me know as having sACN by default outputting on a new show can be very confusing If you are also working with art-net on the same network port.
The sACN takes priority and stops the art-net from outputting correctly.
Can we make the new show state to off or not outputting please?

Thanks C