Hi,
This rule was removed in version 24.12. As usual, the communications from SonarSource were rather ambiguous, requiring some time for me to locate the information.
From SonarQube Community Build 24.12.0.100206 released
The .NET analysis no longer includes advanced dataflow bug detection rules. Advanced rules are only available in the commercial offering.
And here’s an actual list of the removed rules: Which .NET rules were dropped in Community Build? - #4 by cristian.ambrosini