Signed out of Microsoft account

Every time I close out of the Minecraft app, and try and get back into the game it signs me out of my Microsoft account. I follow the steps to "permanently " link my account with my PS4 system, and it works. But when I close the app it signs me back out and I have to follow all the steps again, I love Minecraft however,  it's very annoying to constantly have to redo the steps whenever I want to play online.