I don’t know about mawa but for me i need the UI & Input to work on mobile AR.
My use case is UI that works while in AR, i don’t really care about non AR mode tbh. We hide the UI when the AR mode is not enabled.
Should i try to rescale the UI without setting hardwarescalinglevel then ? I’m getting a bit lost on the best way to support Retina / HDP displays 
Thanks again for taking so much time looking into this issue 