Chat doesn't show up the keyboard

I'm playing the game on a Huawei MediaPad T1 8.0 tablet, but I have this issue since the Mayor's Club was launched. Everytime, I try to write in one of the clubs' chat, the keyboard doesn't show up at all. All I see is the empty field and I cannot call the keyboard. (Same to the search.) I hoped it could be fixed very soon, but I've been waiting for this for such a long time....