Generally, yes, unless by some miracle they are still in the sixty-day window in which case they could hustle up and move dollars back into a retirement account/IRA.

"You have 60 days from the date you receive an IRA or retirement plan distribution to roll it over to another plan or IRA. The IRS may waive the 60-day rollover requirement in certain situations if you missed the deadline because of circumstances beyond your control."

https://www.irs.gov/retirement-plans/plan-participant-employee/rollovers-of-retirement-plan-and-ira-...