Password required to run on BigSur doesn`t work

[crimea84]

I am checking the code but cannot understand why we are facing an issue on BigSur. After the user click on continue, we got the softwareupdate panel from system preferences, but when the user click on install, ask for user password (only the currentuser, I am assuming that it is the variable LoggedInUser grapped from console) but the password does not get allowed.
I checked so many times, the user is not mismatching the password.

[bp88]

Can you share a screenshot for the prompt? Also, can you confirm whether you have a configuration profile that might be restricting software updates to administrators only?