I'm not familiar with that desk, but a quick skim of the manual reads as if the MIDI functionality is pretty much unchanged from the 01V96, if not the Promix 01… So – since you haven't explained what you have done – I'm going to assume you've set a user-defined key to increment the scene memories and have the default 1:1 mapping of program change to scene memory, with the console set to transmit program change? You've captured the program change sent by recalling the first scene, but subsequent scenes (that send different program change values) don't trigger QLab?
If so, then change Byte 1 of the relevant Musical MIDI Control preference from an integer to "any" – then, er, any program change value will trigger GO.
If that's not it then you may have to put your show control the other way round: have a user-defined key trigger QLab (discussed many times on this list: just pick a function you're not using, like an empty channel mute) and have QLab send program changes to the console when you need to also change scene.
Rich