Harry Setiawan , hello!
The non moving shadow can appear from the regular CentiLeo light source if you enabled them. Try to switch on/off them.
The shadows coming from the HDRI rotate following HDRI lat/long rotation.
Also there are shadow weight parameters on the light source settings - they can be increased/decreased to change the intensity of shadow on shadow catcher object.
Is there a way to make the background white or transparent when using HDRI environment?
Edit: I found by override the shadow catcher can not change the background, how about alpha channel?