I am using ArcGIS Pro 2.4.1. When I use the symbology properties to "Classify" my floating point raster with the "Quantile" method, the label changes from being a single ≤ symbol to two symbols <= ...after reducing the format of the labels to round to 1 decimal place. This seems like a bug. I believe that my only solution is to go back and manually edit these back to the single symbol of ≤.
Any advice would be welcome. I now have about 300 layers to manually correct.
A couple of us over here have taken a look at this in ArcGIS Pro 2.4.1 and we aren't able to reproduce what you're seeing.
I'd recommend opening a case with technical support to troubleshoot further as this isn't a straightforward issue to reproduce.
2.4.2 is still doing this... Within the legend... If you go under "Advanced Symbol Option", Format Labels... and "Rounding" to 2 decimal places... you will see this. I see that it occurs with Quantile methods as well: