Chat makes the game go crazy

If I write something in the chat, the words take some seconds to appear in the chat, like if it was lag (but the ms and FPS are ok). While the sentence is writing itself, I can't move or use any habilities, and you can see how the games go crazy. The spells activate by themselves, the cursor hand moves around the screen by herself. Also, during the game no one hears me in Discord, but when the game ends, I start hearing everyone again. Has this happened to anyone? I don't know how to fix it and I can't play with this bug.