wherecontains() Doesn't Work if Values Contain Special Characters

Question

My array contains the following values: 100; 101; 102/1; 102/2; 103/1; 103/2; 103/3; 103/4; 103/4; 103/5; 103/6; 103/7; 103/8; 103/9; 103/10; 103/11; 103/12; 103/13; 103/14; 103/15; 103/16; 103/17; CustInfo/IssuedIdentificationInfo/IssuedIdentification/Issuer; CustInfo/ForeignTaxIdentification/TaxIdentValue; CustInfo/IssuedIdentificationInfo/IssuedIdentification/IssueDt; CustInfo/IssuedIdentificationInfo/IssuedIdentification/ExpDt and using wherecontains I am trying to search for CustInfo/ForeignTaxIdentification/TaxIdentValue. Though this value is present in the array, I only get empty resultset. Why is that so? wherecontains doesn't work if values contain special characters?... 
 OriginalPostID-134009 
 OriginalPostID-134009

shiv.sinha · Accepted Answer

I just checked the documentation for wherecontains as it pertains to arrays here: forum.appian.com/.../Array_Functions.html

Can you check if the 2 values are of the same type, so in this case you would be searching for text within a text array.

Also, can you test this function in an expression editor, this was able to return 1 when I tested it: =wherecontains("CustInfo/ForeignTaxIdentification/TaxIdentValue", {"CustInfo/ForeignTaxIdentification/TaxIdentValue"})