no you should check the program change in the setup menu of OT and program change in global setting menu of the MD. I think you also have to make sure that MD is receiving midi data like crtl-in and OT is sending.

It will become a separate midi channel on which the machine communicate which pattern is running. So if you select A01 on the OT, MD will also switch to A01.

And yes you can also you program chance in midi tracks to change the sound patch on the Minitaur. This works. But elektron machine communicate as indicated above.