In split transactions created using the Paycheck Wizard, the "Employer Match Contribution" and "Employer Match Transfer" memo lines are backwards. See attached example (using data entered from [1]).
First, notice that the "Employee Contribution Transfer" is a transfer to the 401(k) account. This is correct.
Now, the "Employer Match Transfer" should likewise be a transfer to the 401(k) account. It should be offset by the "Employer Match Contribution" (categorized as "_401EmployerContrib"). While the entries are there, those names are swapped.
Please fix the Paycheck Wizard in an upcoming release of Quicken.
[1]
https://fa.financialavenue.org/pdfs/EM_PayStub_PDF.pdf