I'm seeing what I think is a timing issue in my shortlist application...I put a few console logs to see what supportLayerNames are coming through (around line 796 in main.js)...it changes on page refresh...sometimes all of them appear to be loaded, sometimes a few, sometimes none.
Whatever layers show as loaded get the proper events and all works well.
Would it be possible for you to share your web map id so that I can take a look and see if I can reproduce and diagnose? Feel free to PM or email me at mcooney@esri.com if you don't want to share it publicly.
