How to use "WorksheetFunction.Match" as array with variable range

I am trying to implement a .Match function as an array with a variable range in VBA, to find the first non-zero cell in a specific range.

However, currently I only receive a runtime error 1004.

Set myRange = Worksheets("Portf_Mod").Range("AB368:CY368") 
With Application.WorksheetFunction
    Date_col = .Match(True, [myRange <> 0], 0)
End With