If iPhone Settings, Display and Brightness is set to Dark then all in game Message text will show as white text on a gray background hence you cannot see what you’re entering. If Light mode is set, text color is black and is clearly visible. ie problem is only in Dark mode.
@Graham_Rae_6920_B
Looking at your server stats - it looks like you’re using an iPhone 12 and iOS 14.3.0, is that correct?
No, iPhone 11 (iOS 14.3.0)
thanks
Graham