When your logs start to grow, it's easy to miss something. With every word searchable in Lumi, don't stress about remembering that gold moment.
Simply head to your Project Library (click the bookcase icon 
on the sidebar), select the "Logs & Markers" tab, and search away.
Once you find what you're after, you can click on the entry to open the Log.
See the Lumi Logs Help Guide for more.