Legend does not match symbology

[KenBuja]

I've created a map with points that use the basic square symbol. The map shows the correct legend, but in the app, the legend is not correct, showing one symbol smaller.

The map

vs the app

What's causing this?

[jcarlson]

I had something like this happen in a map of mine. For me, it was that the feature layer's templates were somehow tied to the default symbology of the layer, not the layer configuration in the actual map. Oddly, the layer would change how it rendered when the editing tool was opened, then went back to the configured symbology when editing stopped.

Have you looked at the map's JSON to see what's different between the two types?

[KenBuja]

The JSON does show different sizes in the renderers.

After poking around some more, it looks like it's related to the "Adjust size automatically" option in the Map Viewer's style editor. I didn't notice that it was checked and was wondering why all symbols on the map would change size when I modified the size of one symbol. It seems to be a bug that when the option is selected, the MV's map and legend are the same, but the app's map and legend are not. When I click off the option, everything matches.

[KenBuja · Accepted solution]

This has been identified as a bug: BUG-000157594 - ArcGIS Field Maps Legend does not properly honor changes to symbology when selecting "Adjust size automatically" after setting unique symbol sizes.