Full screen (maximize) button is not working in tab P11
I bought lenovo P11 tab couple of days ago. when the productivity mode is enable some apps open as partial screen; without full screen mode. see below image.
but when i'm trying to full screen the application, that middle button is not working. not only for particular application for all the applciation that full screen button is not working. even with the mouse pointer and touch options it's not working.
i restarted, reset and done everything but i couldn't make the maximize button working.
my device details as below.
model - Lenovo TB-J606L
Serial No. -
MOD: Serial number removed as it's a privacy risk on a public forum. MTM is ZA7S0169AE - Doc