DJI Mavic Pro blur pano when Stitching

John, I can confirm the panorama ND filter issue appears to be fixed in LrC 10.2 with the Sony RX100M5 ARW files. However, my Canon G9X MKII files still exhibit the issue. Rikk claims they are only investigating a fix for the Canon files so it's a mystery as to what was changed.

"There was some talk about adding that in a future up date, but if many of the camers with ND filters don't record it then I doubt they will add support."

At the time of the bug report, Adobe employee Rikk Flohr said, "We have a fix in process for an upcoming release for CR and LrD, LrClassic." But the bug post was never changed to "Solved" and no fix appeared in any release notes.

However, I retested in LR 10.2, and I see a significant improvement for the two Sony examples but no improvement for the Canon example:

https://feedback.photoshop.com/conversations/camera-raw-and-dng/lightroomcamera-raw-bad-blending-from-photo-merge-panorama-while-photoshop-does-fine/5f5f460d4b561a3d42709754?commentId=606a934b3e58760105f1cb2c 

"The PANO003.dng image file with the 1/4000 shutter speed can't be due to a ND filter. The PANO0003.dng file has the same exposure as the PANO0003.dng as measured on the wall of the church so their shutter speeds should be the same. With a ND filter the actual and recorded shutter speed should be lower."

If 1.DNG had an ND filter of 5-6 stops applied, and 3.DNG had no filter, that would account for the difference in shutterspeeds.

However, an outdoor scene at 6:52 pm would be highly underexposed with 3.DNG's settings (1/4000, f/2.2, ISO 100).  So I agree it's a camera bug.

"Interestingly, I can't find any EXIF or Makernotes metadata in the Sony RX100 V raws that record when an ND filter is applied, so I'm not sure how LR/ACR determines that."

My Canon G9X MKII has an 'ND Filter' ON/OFF MakerNotes field, but LrC and ACR don't currently read that field. There was some talk about adding that in a future up date, but if many of the camers with ND filters don't record it then I doubt they will add support.

After thinking about this the PANO003.dng image file with the 1/4000 shutter speed can't be due to a ND filter. The PANO0003.dng file has the same exposure as the PANO0003.dng as measured on the wall of the church so their shutter speeds should be the same. With a ND filter the actual and recorded shutter speed should be lower. This appears to be a hardware malfunction in the DJI FC220.

There is a similar post at the below link created by a different OP. Here's my solution using LensTagger with more information.

https://community.adobe.com/t5/lightroom-classic/dji-mavic-pro-panos-blurry-after-stitching/m-p/11946784#M228162

If you upload the three originals to Dropbox or similar and post the sharing link here, we can see what might be going wrong and perhaps suggests alternatives.