MuMiX,
From what I see, TurboTax is handling it correctly. There were less than 30 days between the initial loss of the first trade and the purchase date of the third trade. So the loss on the first trade is not allowed to be applied to the second trade as you (again) replaced the equity sold with an essentially identical one. You have a profit of $10 on the second trade that is reported against 2020 income. If you do not repurchase the same stock within 30 days of the Jan 2021 sale, you can then apply the $5 loss to against the gain on the third trade for a profit of $5 to report on your 2021 tax return.
