Comentário oficial
Because of the terrain rising up and the presence of trees there the overlap was not sufficient to reconstruct that area. It was filled in using the Flat Map Failover feature.
https://support.dronesmadeeasy.com/hc/en-us/articles/360054457952-Flat-Map-Failover
You have the GeoTiff for the area that turned out using photogrammetry and then the patch GeoTiff as a separate file. You would need to merge those to create a JPG that contains both:
https://support.dronesmadeeasy.com/hc/en-us/articles/115003641246-QGIS-Raster-Merging