I am playing minecraft and Im chatting with other player and then suddenly my jump button/Space button dosent work I cant jump

And I tested it. I open the chat and press the space button then exit the chat and the button dosent work.

And for it to work again I need to exit the app and press space and go back to game ands its gone. But its a hassle to leave and enter the game just to jump

I hope this gets fixed
(Btw I am playing Minecraft on my Phone with a Keyboard and mouse connected Wired)