Freeze screen after writing a message in the chat

Hello ! Since I updated Minecraft 1.16.20 on my Nintendo Switch, every time I want to write something in the chat, my screen freezes for a while indefinite time: once I have written my message with the Nintendo Switch keyboard, I confirm the message and the screen is frozen, sometimes a few seconds, and sometimes several minutes ...  It's really very annoying because the game continues in the meantime and I can't do anything ...Thank you in advance for fixing this problem as soon as possible!