Are these used?
Because the logging only shows: E:\TFSOnline\_work\_tasks\SonarCloudPrepare_14d9cde6-c1da-4d55-aa01-2965cd301255\1.13.0\classic-sonar-scanner-msbuild\SonarScanner.MSBuild.exe begin /k:xxx /o:xxx
Build your pipeline with Azure Pipeline verbose logging turned on, then look in the log output for the SonarCloudAnalyze step.
When running the analysis in MSBuild mode with verbose logging turned on, the contents of the generated sonar-project.properties file that is used to configure the analysis will be dumped to the output, so look to see if your additional properties are included.