In almost all cases, a node appears in the force/stress reports twice (since almost all nodes connect <em>two</em> pipes). If the node in question happens to be a tee, then it will appear in the force/stress reports three times.

Use the [Search] facility (the "binocular" icon) to search for the node. Keep searching until you find all occurances of the node. You will find the location referenced in the <em>Stress Summary</em>.