How is the reports folder used when using the Harbor Trivy Adapter?

[jeongseog-kim]

Harbor Trivy Adapter 0.30.7 version is installed and used.
The /home/scanner/.cache/reports folder is always empty.
When scanning in the Harbor UI, the file below (size 0 byte) is created for a while and then disappears.
Where is the report file saved when scanning?

file name : scan_report_3261135134.json