The alerts tab shows alerts generated by Burp's tools. This information may be useful to troubleshoot network connection or other problems.
If the same alert is generated more than once in succession, the alerts are consolidated into a single entry in the table, with a counter showing the number of times the alert was generated.
Get help from other users, at the Burp Suite User Forum:
This release contains various enhancements to the Scanner engine logic, to improve both the reliability of issue reporting, and the quality of proof-of-concept exploits. Improvements have been made to the following checks: