CRA is not downloading my superannuation T4A. it shows gross amount paid but not the tax deducted..

If you check on your physical slip or on CRA MyAccount, is the tax deducted showing there?

You can also just edit your T4A to add the amount. To get to the T4A in TurboTax Online, search for “T4A” on the Tax Home page (2024 tax return on the left).