Indicating you are a dependent in the MY INFO section is the only way the program can know you are a dependent ... did you mark that box ?
Then depending on the nature of the income will determine if the standard deduction be limited ... read the rules here :
Dependents – If you can be claimed as a dependent by another taxpayer, your standard deduction for 2020 is limited to the greater of: (1) $1,100, or (2) your earned income plus $350 (but the total can't be more than the basic standard deduction for your filing status).Mar 12, 2021
Topic No. 551 Standard Deduction | Internal Revenue Service
