Hurricane Ian is not a Qualified Federal Disaster.  I just ran a test myself.  It adds everything on Sch A to an inflated total.  Did your test include other itemized deductions (like mine) or was it blank except for the loss and the Standard Deduction force added at line 16 on Sch A.  I believe this is program defect that should be remedied by ProSeries.  The program should know how to do this without a manual workaround.  They need to work on the Sch A or or the Sch A wks.