mel command ('rendersequence;') is not working whille trying to open maya from command line

Question

So basically I am trying to open maya from command line using subprocess in python and executing a python script (.py) file like below:

command = [
        "C:/Program Files/Autodesk/Maya2020/bin/maya.exe",
        '-command',
        'python("exec('python script path")'
    ]

from my script everything is working fine like maya is opening and as well the file except one command for example:

mel.eval('renderSequenceOptionsWindow;')
mel.eval('optionMenuGrp -e -v "{}" renderSequenceCameraList;'.format(facial_cam_node))
mel.eval('renderSequenceCurrentCameraChanged();')
mel.eval('renderSequence;')

I have these commands first three are working fine except the last one , the issue is I am not getting an error as well, its like Maya is not even considering this command from the script.

• Here <facial_cam_node> is the camera I'll be using to render images.

And the weird part is on the same opened Maya session ( which I opened from command line), when I am running this command back again in script editor then its rendering as well, its just not happening in the automated workflow.

Any help would be great thanks