The only way for us to help you troubleshoot your tags is by you emailing us a sample image or two to firstname.lastname@example.org
We have a warning in the workflow if we detect that your images were last processed by something other than the DJI camera. Other softwares, lightroom especially, loves to eat tags. They move things around to non-standard locations. Some software may pick those non-standard tags up while others won't. It is possible to use lightroom without killing your tags but it takes work.