TextInput - no soft keyboard in iOS

Hey Apache friends,

I'm a little perplexed on this issue I am having. The ultimate goal is to
have square corners on a textinput box in a mobile flex project using Flex
4.12.1 and AIR 13.

I have a typical spark textinput box that uses spark.components.textInput
(<s:TextInput>) - works fine

But when I add a skinclass of
[HostComponent("spark.components.TextInput")]
for my host component in an MXML spark skin I achieve my rectangular input
box but lose the keyboard in iOS - works fine in android.

I tried a basic project doing the same hostcomponent as my skin and had the
same results.

Any ideas on why this is and is there a way to make this work?

Thanks,
Jonathan