Hi, I have a challenge

I have an array of data in a worksheet called "Imported Data", Some of these
cells contain no data.

I have a series of drop-down lists in a worksheet called "Main", in the
cells D11, D13, D15, D17, D19, D21, D23, D25, D27, D33, D35, D37.

What I would like is for the user to select 1 or more values from the lists
in "Main", and filter the "Imported Data" based on these criteria. At the
moment I have this which seems to filter EVERYTHING out, not just the
selected criteria.

The results then need to be shown in a worksheet called "Report"

***************Current Filtering Code as follows:********************
Sheets("Imported Data").Activate
'****Code to copy data to "Report" worksheet omitted****
Sheets("Report").Activate
Selection.AutoFilter Field:=3, Criteria1:=Worksheets("Main").Range("D11"),
Operator:=xlAnd
Selection.AutoFilter Field:=4, Criteria1:=Worksheets("Main").Range("D13"),
Operator:=xlAnd
Selection.AutoFilter Field:=6, Criteria1:=Worksheets("Main").Range("D15"),
Operator:=xlAnd
Selection.AutoFilter Field:=7, Criteria1:=Worksheets("Main").Range("D17"),
Operator:=xlAnd
Selection.AutoFilter Field:=10, Criteria1:=Worksheets("Main").Range("D19"),
Operator:=xlAnd
Selection.AutoFilter Field:=11, Criteria1:=Worksheets("Main").Range("D21"),
Operator:=xlAnd
Selection.AutoFilter Field:=13, Criteria1:=Worksheets("Main").Range("D23"),
Operator:=xlAnd
Selection.AutoFilter Field:=12, Criteria1:=Worksheets("Main").Range("D25"),
Operator:=xlAnd
Selection.AutoFilter Field:=14, Criteria1:=Worksheets("Main").Range("D27"),
Operator:=xlAnd
Selection.AutoFilter Field:=19, Criteria1:=Worksheets("Main").Range("D33"),
Operator:=xlAnd
Selection.AutoFilter Field:=20, Criteria1:=Worksheets("Main").Range("D35"),
Operator:=xlAnd
Selection.AutoFilter Field:=21, Criteria1:=Worksheets("Main").Range("D37")