In Excel I can use the following statement with no issue:  =IF(A89="","",(WORKDAY(A89,-3,Holidays!$A$2:$A$9)))
 
I tried the following in Smartsheet and receive the error:  #BLOCKED.  =IF([Launch Date]36 = "", "", (WORKDAY([To Production by 3 pm (Site merch deadline)]36, -1, $[Holidays 2016]$1:$[Holidays 2017]$13)))
 
Any suggestions?