In GeoServer 2.9.1 I have thematic groups configured. Each group consists of a series of vector layers and each of them has at least one raster. In version 2.9.1 cql filter deals with them perfectly and applies the filter only to vector layers, while in version 2.18 it turns out that it returns an error =
property descriptor is null did you request a property that does not exist?
Is it a geoserver problem or a question of additional settings?