task scheduler setting affects script RESULT

Pro 20H2

Script always performs without problem.
Every line in script is solid and happy.

I, an Administrator, own script file.
Administrators and System have full control of it. No inheritance.

Task does nothing more than to run the script.
Testing of task: I manually Run it in Task Scheduler.

Script does nothing more than to report existence of N:\ . IF EXIST....
N: (mapped letter) exists, permanently; and its resource always is visible and
accessible and responsive to user (myself).

The following is what hurts my head :
Report is yes when task is configured to "Run only when user is logged on";
report is no when task is configured to "Run whether user is logged on or not".

In the Task's General tab, have you tried checking "Run with highest privileges"? No sure if that will fix it or not.