None of my commercial apps work because they have the mobile advert plugin installed, so I guess it's a matter of waiting for this, actually to shed some light on this, I just looked at the TODO https://github.com/Scirra/Construct-3-bugs/issues/1646 list for c3 runtime, and mobile advert is ticked, so does this mean it's meant to work?
When I removed the plugin from my most recent project, just now, it worked in c3 runtime, so either its buggy, or Mobile Advert hasn't been completed yet.