Transition Preview
You can preview a complete dissolve, wipe, or DVE wipe transition on the Preview output of the switcher instead of performing a standard transition on the Program output. The transition is performed on the Preview output.
Note: A transition preview only previews the transition. When the transition is complete, the output returns to what it looked like before the
transition. If the transition rate is too low, you may not be able to see the transition before it cuts back.