If you upgraded to Android 7 (Nougat) and are still using Multiling Keyboard Classic version instead of Multiling O Keyboard, you may encounter some incompatibility such as wrong layout for certain languages for example Chinese.
I am fixing some of it but it is very complicated to fix everything, I urge you to replace it to Multiling O Keyboard.
Multiling O Keyboard has more features and yet smaller in size.
New Beta App:
If you like simple lightweight apps, please consider to help me test my new launcher app (Renegade Launcher Beta)