While editing a Custom MC Fixture in the fixture editor, clicking the "Snap" attribute on or off of a Beam Parameter in the Master Cell causes the Master Cell's addresses to be re-patched on the fixture.
In my case, the Master Cells' addresses are 241,242,243 and the Follower Cells come before those addresses (1-240).
When I click SNAP and then "Save Fixture", the Master Cells move to Addresses 481-483 from 241-243. (it will keep doing this if I do exactly that again--now to 721-723 or 240 addresses up from before; is it referencing the Follower cell number of 240?) Back in Patch, if I re-address the fixture again, it plays along correctly and patches the Master Cells back to 241-243.
Nomad 3.0.2 b6
6K Dongle
very small showfile
Thanks!