Terrain Active False when GPS is FIX

Hello ther,

I am trying to perform a Terrain Following flight using a VTOL. I followed the steps from here Terrain Following for Plane. TERRAIN_ENABLE = 1 and TERRAIN_FOLLOW = 1.

I loaded the terrain data to the APM/TERRAIN folder in the SD card, but when I want to check the current altitude (when preparing the flight plan), no terrain data is available. See figure below:

Captura de pantalla 2022-05-13 120302

It happends also when GPS i fixed, with more than 10 satellites. Any help on this issue?

Thank you so much,

Eduard Miralles