Peculiar "Subscript used without an array variable" error on a 1x3 array

	;Copy the [n][3] ObjectTable from the class properties
	local $aObjectTable = $oSelf.ObjectTable

	;Determine [n]
	local $iElements = UBound($aObjectTable,1)

	;Debug script - Output says 1 row, 3 columns (which is correct, in this instance)
	If IsArray($aObjectTable) Then MsgBox(0, "AnnihilateElements", "Still an array" & @CRLF & "Rows: " & $iElements & @CRLF & "Columns :" & UBound($aObjectTable, 2))

	;Store object from first column of table (These next three lines cause the error)
	local $oObject = $aObjectTable[0][0]
	local $sGUID = $aObjectTable[0][1]
	local $hObj = $aObjectTable[0][2]

According to the called MsgBox, the array is one row and three columns in size (as expected).  According to UBound($aObjectTable, 0), it is only one dimensional.  If I address $aObjectTable as a one dimensional array, it throws an out-of-bounds array index error. Any suggestions?