Ipad keyboard does nota works chen writing on the board.

[Luvico]

Hi, I have to use my iPad for my lesson for two weeks and somehow when I open the board a d try to add any text it doesn't work, however if I write in the chat it does. I've tried to look to any keyboard options on the settings but I can't find a anything. Does anyone know what is this about? I really appreciate your time and attention