Python - Else statement running randomly

beginner coder here learning Python.

I am creating an employee management system project. The basic function below is searching for an employee profile by SSN.

Issue: The Else statement in the function below will sometimes not work. When I first run the program, it will find and display the first profile in the list. If I add another employee (separate function), and I search for that SSN, the program will run the Else statement stating it is not found. Then if I continue to exit the program (search again? No -> return to main menu? No -> end program), it will print the second profile I was searching for and start at that point again instead of exiting the program. I have printed my employee_list and confirmed that the information is properly formatted (each profile is a string separated by commas).

Sometimes, it works perfectly; that's whats tripping me up. If I knock out the else statement with #s, then I have zero issues searching. It seems to only happen after I manually add a profile, but if my profiles are imported from my .txt file, those search/work just fine. But again, I have printed my list multiple times and every entry, no matter how it got there, is formatted the same.

I have tried this in Python IDLE and in PyCharm with the same results. What am I missing? I am also getting inconsistent writes to .txt files (sometimes it writes everything in the list on 1 line, sometimes on multiple lines, sometimes with a empty row in between items). I mention that in case it could be indicative of my Python itself being messed up.

I know my code could be written better, but I just don't understand why these issues are occurring.

Thanks for any assistance.

employee_list = ['Adam,111-11-1111', 'Tom,222-22-2222']

def ssn_search():
    print('---------- Search by SSN ----------')
    ssn_select = input('Please enter employee SSN: ')
    for i in range(0, len(employee_list)):
        employee = employee_list[i].split(',')
        if ssn_select == employee[1]:
            print('Name:', employee[0])
            print('SSN:', employee[1])
            break
        else:    #<-------This else statement is the problem
            print('That SSN does not exist in this system.')
            print('Please try another SSN.')
            ssn_again()
    search_again = input('Would you like to search for another profile? Y/N: ')
    if search_again in ['Y', 'y', 'Yes', 'yes']:
        ssn_again()
    elif search_again in ['N', 'n', 'No', 'no']:
        ssn_edit = input('Would you like to edit this profile? Y/N: ')
        if ssn_edit in ['Y', 'y', 'Yes', 'yes']:
            edit()
        elif ssn_edit in ['N', 'n', 'No', 'no']:
            again()
        else:
            print('That is an invalid selection.')
    else:
        print('That is an invalid selection.')
        ssn_again()```