I have a hosted feature layer for utility pipes that contain a field for pipe diameters (number field, type - double). Somehow the field values have changed to ranges, like 6" - 8" and it messed up a map that had this layer styled by size.
I redid the layer style in the map, and it did see the actual pipe sizes, also the labeling is working with the correct sizes.
Back in the layer's Data Tab, the attributes are still shown in the range values though. It's like the system is trying to automatically sort things for me, but I don't want it to...

I also can't create a list for this field, the Create List option is not available.
Any ideas what might be wrong with this layer/field.