URL - Formula button for copying a record

Anyone know why the last field in this formula fails to copy information (that's why I have it there twice).

URLRoot() & "db/" & [_DBID_JOBS] & "?a=API_GenAddRecordForm&_fid_91="&URLEncode([Record Copy])&"&_fid_104="&URLEncode([Related Commercial Account])&"&_fid_31="&URLEncode ([Related Customer])&"&_fid_36="&URLEncode([Related Franchise])&"&_fid_95="&URLEncode("Reconstruction")&"&_fid_95="&URLEncode("Reconstruction")& "z=" & Rurl()