ArduCAM PTZ-IMX477 Camera not focusing only showing blur image

[Sarac7t]

Hardware lists
1.Raspberry pi 4B 2GB
2.ArduCAM PTZ-IMX477 (B016712MP)-

Software
Raspberry pi Debian Bulleye OS 32 bit

My Issue:-Camera not focusing only showing blur image

1. I am following the official native documentation from the (https://www.arducam.com/docs/cameras-for-raspberry-pi/ptz-camera/12mp-imx477-ptz-high-quality-camera/)
2. As I am using the latest OS I can see that there is no need to install all the packages related to picamera-2. But still I have updated everything and installed the picamera-2 and open cv
3. Enabled I2C in the raspberry pi
4. Downloaded the PTZ-Controller directory from the github repo (git clone https://github.com/ArduCAM/PTZ-Camera-Controller.git)
5. Tried executing the libcamera still command and I am able to view the camera output in the viewer but focus was not working
6. I also tried running the FocuserExample.py from the PTZ-controller repo but the focus was not working and had the same issue.

Can you please help me to fix this issue?