I created scene Rock, on which the first 16 Local inputs are used for channels 1-16. All worked as it should. I created scene Theater which has the DX168 as the inputs for channels 1-16. All worked as it should.
When I recalled Rock, the sources stayed on the DX168 instead of changing to Local as saved. I fixed it and re-saved the scene. When I recalled Theater, the sources were Local instead of changing to DX168 as saved.
The same thing happens to the few output changes I saved.
In short, it seems that when I save a scene with a certain I/O patch, that patch saves to every scene in the show.
You should definitely be able to be change patching on a per-scene basis, please triple check global and per-scene recall filters and safes as these are the only valid reasons you would not see a change.
If everything is set to allow, could you upload here or send us (via support.allen-heath.com) a zipped copy of your show please?
Once you have saved it, you could also carry out a full reset of the SQ and try the process again (with some quick patching) to see if you’re getting the same.