SerializeJSON not preserving case on query

After upgrading to serializing a query object using SerializeJSON does not preserve case and converts all field names to uppercase. Downgrade to it works as expected. Key case is set to Preserve case under admin settings Language/Compiler.

Query results:
id product mbrand comments
1 ENC XTR Overnight shipping is no longer approved

retData = SerializeJSON(qComment,‘struct’);
returns: [{“ID”:111,“PRODUCT”:“ENC”,“MBRAND”:“XTR”,“COMMENTS”:“Overnight shipping approved”}]

I’ve checked it & create a new ticket for this issue. This is the link


Best Regards,