I'm using ArcGIS Pro 2.9. The version is not optional because I have to publish the custom print service to ArcGIS Server 10.9.1.
I tried everything to get dynamic legends to work but the legend either appears as a white box, or it shows ALL OF THE LAYERS that appear on the pagx file even though I selected the box that says show only layers that appear on the map. On top of it all Pro hangs and crashes every 5 minutes so it's very frustrating to work.
What is the gold standard as far as getting a dynamic legend to work in Pro? I have never have issues with this in ArcMap but unfortunately that's no longer an option.