The root cause of the initial report, which was later retracted, is unknown due to the lack of details. The CNA's decision to reject the CVE indicates that the reported issue was either misidentified, a false positive, or did not meet the criteria for a security vulnerability. The researcher's inability to provide proof further supports the conclusion that the reported issue was not a valid security concern. Since the issue was withdrawn, there is no specific function or logic flaw to analyze.