I have a layer with rule based labelling enabled. There are two label styles: a base style for all labels (no filter) and a highlight style which is intended to apply to features with a particular attribute value only ("Class" = 'Review').
Sometimes it works, sometimes it doesn't. Each time the map canvas is refreshed each feature with the 'Review' value randomly chooses either the base label style or the intended highlight label style.
Have I failed to set this up properly or is this a bug?
Rule based label implementation with style applied randomly to one feature.
Refresh and this time the rule failed to apply to anything.
Another refresh and this time the rule randomly applied to another feature.