i dear, recently im  faceing gps issue in M300 rtk, while  drone in misssion , that time its come on  ALT mode, so drone  gps zero ,droneposition we don't know totally im blanked...
1.RTH not working
2.drone move on air direction
3. 100% chance to lost our drone..

1)how solve this issue, kindly clear this issue
2.)how to check flight log.(i took flight log with help of DJI Ent Assistant but its not open , i tried many application including air data also)

Hi there, I'm sorry to hear about the difficulties that you encountered. Please export the logs before and after the exception, we'll forward them to our corresponding team and take a look in comparison. You may upload it to Dropbox or Google Drive, then share the link with me. Thanks.