Lost earnings on 401k for late pay?

[TPApril]

HR noticed they missed paying an ee a few vacation days in a paycheck a few months ago.

In correcting this missed salary, would the 401(k) be considered late and require lost earnings, even though the 401(k) is being deferred, withheld and deposited at time of actual payment of the portion of the salary that is late?

[RatherBeGolfing]

Nope.  As long as they timely deposit them when actually withheld, the are deposited timely.