# The DSM output from Pix4Dmapper was generated not correctly **URL:** \ **Category:** PIX4Dmapper Questions/Troubleshooting\ **Created:** [May 8, 2020, 8:40am UTC](https://community.pix4d.com/t/the-dsm-output-from-pix4dmapper-was-generated-not-correctly/12683 "2020-05-08T08:40:41Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![Pix4D\_Alumni\_MV](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/pix4d_alumni_mv/32/2071_2.png) [@Pix4D\_Alumni\_MV](https://community.pix4d.com/u/Pix4D_Alumni_MV)\ **Post date:** [May 12, 2020, 12:30pm UTC](https://community.pix4d.com/t/the-dsm-output-from-pix4dmapper-was-generated-not-correctly/12683/6 "2020-05-12T12:30:23Z")
Hi, In deed if you have an OTC without Support & Upgrade, you cannot download the latest version. You would need to buy it. In my opinion the pattern you see is related to your flight height. This bug was reported for the Mavic 2 Pro: > [@Pix4D Mavic 2 Processing Issues](https://community.pix4d.com/t/pix4d-mavic-2-processing-issues/7215/23): > >   Edited on January 24th 2019   A new firmware update for DJI Mavic 2 was released on 2018.10.11 ([v01.00.01.00](https://dl.djicdn.com/downloads/Mavic_2/20181011/Mavic_2_Pro_Zoom_Release_Notes_en.pdf)) and the latest status regarding the geotags is the following: GPS Altitude  written in the EXIF file of the images  is correct.  Exif.GPSInfo.GPSAltitudeRef   Above sea level Exif.GPSInfo.GPSAltitude        376.6 m Latitude and Longitude  written in the EXIF file of the images  are not correct. Exif.GPSInfo.GPSLatitude       46deg 30’  - 24.216" Exif.GPSInfo.GPSLongitude     … And it has been solved in 4.4.9. However it does not seem to affect your project. I would expected that flying lower you should be able to get proper results and avoid this pattern. Best --- _[View the full topic](https://community.pix4d.com/t/the-dsm-output-from-pix4dmapper-was-generated-not-correctly/12683)._