When linking two devices, if I change the Show on one device, should the other device change to the new Show? What I have found is that if I change the Show on one device, the other device still displays the previous Show. The devices remain linked but the play command on the master device starts the equivalent numbered song from the previous Show. For example, if I select song five in the new Show, the slave device will play song five from the previous Show.
No, changes in shows are not transmitted through device linking. If you want to view a different show, you would need to select it on each device.