ERP Closing balances are adding up every month

Summary:

We are pulling "Ending Balances" from ERP Cloud every month which is mapped to "Closing Balance Input" in FCCS. For certain accounts instead of calculating Period balance (YTD current period - YTD prior period) , it is adding these closing balance against each period. Why this unexpected behavior is happening?

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Version (include the version you are using, if applicable):

24.05.66

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