Monte Carlo Reports for Post Death Inherited Retirement Account

I am running reports in which my spouse lives an extra five years after my death. She inherits all my retirement accounts (IRAs). While the Monte Carlo reports for my retirement accounts seem reasonable until my death, hers don't. In hers all the percentiles are zero. The only column with values is "Specified Mean Return". I implement the same portfolio in hers and mine throughout the entire period of our combined lives. Seems like her M.C. reports should be roughly a continuation of mine. Am I missing something?
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