This is a known issue with the way DJI geotags and we have noticed the same in multiple mission.
To give some more insight, the images that are saved on the drone’s SD card are geotagged by DJI. Lat./Long. coordinates are reliable in the image EXIF, however, there might be some inaccuracies for the altitude depending on the location where you are mapping. We made testing in our office here and we found that the vertical coordinate is off by several meters that can reach an error of 100 meters. Some users noticed the same. Note that this is just an offset meaning that within the model, the accuracy is not affected, only the absolute location is.
As a consequence, we always recommend processing with ground control points (GCPs) in order to fix these uncertainties. If you have issues to mark the GCPs in the rayCloud because of vertical shift, click here. If you do not have GCPs, please refer to this procedure.