To fix inconsistencies in analytic settings, functionality needs to be enhanced to ensure they are on par with other visual component enhancements made for Cartesians, and additional settings for sc...
I can understand why this doesn't work in its current state: in order to forecast/trend, Power BI needs to know relative distance between each category value. But regardless, a very common user story is not currently supported. Two possible solutions: 1) Use continuous (not categorical) but force Power BI to display all values of x-axis (not matter how cluttered that makes the visual) OR 2) Activate Trendline for Categorical, but caveat to user that Power BI will infer equal increment across category values.
