HEREFLOW SENSOR NOT WORKING as we connect it to mission planner it is showing bad opt flow and opt x,,y,z values are still zero

Hi, Alvin
As we carry out the flight test using Here floe sensor with TF mini LIDAR as when we put it n RTL mode by disabling the GPS drone is going up and not returning and when we use with GPS enabled Precision landing is also not happening .Any more parameters need to be changed apart from the document…Please help and reply.

Please share the log

Yah…i will share…As any parameters related to Terrain need to be changed as I changed Terrain_Enable parameter to 1 as you suggested, And we need to plan the mission in Terrain map or normal map…and any further parameter need to be changed