What Schedule 3 are you referring to? IRS Schedule 3 for Form 1040 does not have a Part 4 or Part 5.
If you are referring to a Canadian form, this is the U.S. TurboTax support community. Post your question about Canadian taxes in the Canada TurboTax support community.
Are you the same person who posted essentially the same question a couple of hours ago under the name dcalisti? Please do not post multiple questions about the same problem. When information is scattered in multiple threads it's confusing and hard to follow, and hard to see the whole picture.
