HPCC-9923 Activity Window Load Twice on Startup

Fixes HPCC-9923

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #4779 from GordonSmith/HPCC-9923

HPCC-9923 Activity Window Load Twice on Startup

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>