topic Scale-based symbol classes behave inconsistently in ArcGIS Pro Questions

Scale-based symbol classes behave inconsistently

BlakeTerhune — Wed, 31 Jul 2024 00:00:29 GMT

I'm trying to use scale-based symbol classes for the first time in ArcGIS Pro 3.1.3 and I'm experiencing very inconsistent results. I'm using unique value symbols based on a single field with no grouping of symbols. When I drag the left slider to set the outer limit scale and leave the right slider to None for inner scale, it seems to work for some of the symbols but not for others.

I have not found any consistency or pattern in why some don't work. I've tried exporting to a file geodatabase and projecting to a different coordinate system, all with the same results: when zooming out beyond the scale set by the left slider, some of the symbols still show. I even had a coworker confirm the inconsistent behavior on a different computer.

Re: Scale-based symbol classes behave inconsistently

JaredPilbeam2 — Wed, 31 Jul 2024 15:48:12 GMT

Just a random guess, but are there any NULL values in your field? My guess stems from my very recent discovery: https://community.esri.com/t5/arcgis-pro-questions/symbols-dissapearing-after-applying-arcade-script/m-p/1513004#M86250

Re: Scale-based symbol classes behave inconsistently

BlakeTerhune — Wed, 31 Jul 2024 16:15:45 GMT

I upgraded to ArcGIS Pro 3.3.1 and the scale-based symbol classes are now working flawlessly. 🙄