I'm using a P2, I've just checked the internal switch and it was set to stereo, so I've moved that over to mono.
Our singer couldn't get a stable connection to his phone when using the X-Air, he realised that his Ipad was too old so wasn't running the software properly so was really laggy. He swapped to the mobile apps, but it looks like the mobile apps on Apple are much more limited compared to the Android version - presumably there's only one Android app.
Even then, whilst stood next to it he couldn't get a stable connection - I expect an external router would help, I've suggested it a couple of times, but he's definitely happier back in his comfort zone using an analogue mixer.