Having problem with Schedule 3 Line 17599, Capital gains/losses from T3 slips. Why is this line not linked to my input on the T3 slips?

[TurboTax_Susan]

@garybw Do you have anything entered in Box 52 or Box 53? If not, you'll need to enter whatever is in Box 21 into either Box 52 or Box 53.

The new capital gains rate is not going into effect this year, so both boxes are taxed at the same one-half (50%) rate, but they still need to be filled in.

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