Hi yusufofficiall01,
Good day.
Please kindly update the firmware to the WW-v16.0615.1903.92, and Asus Launcher version 5.5.2.34.
Could you please kindly tell me more about the navigation bar problem?
For the Launcher problem, I would suggest you restore the Asus Launcher for a check.
(settings > apps & notifications > see all apps > Asus Launcher > storage & memory >clear storage & cache)
Thank you.