Sumrange function used along with UDA function is not working as expected

Summary:

We are trying to write a calc manager script where we want the sum of all entities tagged with Specific UDA multiplying it with respective ownership percentage but seems not providing expected output.

Code snippet attached below for reference. (Here Windfarms is the UDA for entity dimension).

Please suggest some alternate to make this calculation work.

Code Snippet (add any code snippets that support your topic, if applicable):

SET HYBRIDBSOINCALCSCRIPT FULL;

FIX("FCCS_No Intercompany", "No Future 1", "No Future 2", "No Cost Centre", "Local_GAAP", "FCCS_Periodic")
FIX ("FCCS_No Movement")

FIX("VL_VAL0095")
"FCCS_Data Input" (
IF (@IsLev("Entity", 0) AND @ISMBR("EN_8599"))