Atoll_RSRP prediction

Hello, I am a university student working on Atoll.
I encountered a problem with the RSRP prediction: is it normal that the field level is excellent everywhere?
If not, how can I fix it?

Here is a screenshot of the prediction result below.

@Chanez, did you load the DTM file (Terrain) in project ?

@Chanez
Make sure there is geodata loaded into your project.
Make sure the display in your prediction is set for different range of values a not only one range with one color