Hi,
I already received a response from support for a workaround but I'll post here so it's searchable.
If you have SACN selected as an output in Patch (i.e. channels 1-999), if you change the output in Patch to DMX only, sacn will continue to be output if those same channels also are used in a Pixel Map (with SACN selected as the output in your Pixel map setup.)
There are times when I want to control pixel tape with an external media server (i.e. Madrix). Since it causes a conflict with our pixel drivers having two sources sending SACN frames out to the network, I need to deactivate SACN on the pixel tape channels in the console.
This can be done via a Macro that turns SACN off in patch and in any pixel maps that use the same channels. So it looks like the Pixel Map output selections override whatever is setup in Patch.
EOS v3.0