Keyboard Problem on MCPE (android tablet and mobile)

>Keys on the keyboard does not respond when I am inside the game/in a world, be it survival/creative/realm/server.

>Only certain keys works (Esc, Enter, Control)

>When I hold control together with the W and E keys, they work and I can open my inventory with E and W to move my character, however, when my character moves automatically forward and the E key does not work when I am not holding the Control key.

>Other keys like the space bar, shift, or any in-game keys does not work even when holding Control.

>When I open the chat using the Enter key, all the keys are working properly. When I close the chat using the Esc key, the keys are not responding again. Keys works for chat, but not in-game. 

>Keyboard is working fine on the loading screen and create world page. Keyboard is also working on other apps. It is a wireless keyboard connected through either Bluetooth/wireless USB connection 2.4ghz