- are you using a different keyboard apps? you could try a different one or the default one
- are you inputting normal text characters? (most emojis and other specialized text characters are not allowed)
- do you see the text characters as you type it in? and then when you touch Enter, is this when it all disappears?
- does the keyboard work normally for emails or other text apps?
- what version of iReal Pro are you using? (More-About)

If you have any other information you can provide, please let us know. Thanks.