You've set sperestapi.com.symantec.sse.enable_allow204=false in the application.properties of the Symantec Protection Engine (SPE), however the "scannedFilePath" property is not returned when using the scan-file-path or scan-file-stream APIs.
SPE 9.x
The scan-file-path and scan-file-stream APIs do not support the "scannedFilePath" property.
The SPE does not have functionality to provide scanned files back to the user when the scan-file-path or scan-file-stream APIs are used.
https://techdocs.broadcom.com/us/en/symantec-security-software/endpoint-security-and-management/symantec-protection-engine/9-2-0/SPE-Docker-Containers/how-to-scan-files-using-rest-api.html