I do not believe that you have done anything wrong.

Depending how early in 2022 the person died and Social Security was notified might have The IRS confused(if they were not confused already) 

I think you might have to contact social security.

Another solution would be to paper file the return which most people would rather not do.

If you cannot get this straighten out by 4/18 you might want to consider an extension.

In the mean time check out what some of my fellow preparers have to  say because they might have a better solution.