IOS 11 shows question mark (?) Character instead of Single quote (') or Double Quote ("")

Question

I am working on Xamarin.iOS application. And found due to updating the device with IOS 11, result shows shows question mark (?) Character instead of Single quote (') or Double Quote ("") in Text.

Any one found such issues?

Answer 1

Found a work around: as Turn Off Smart Punctuations in Settings/General/KeyBoard.