From Nikon:
Changes from Version 1.2.1 to 1.2.2
- Upload of MP4 files to NIKON IMAGE SPACE is now supported.
- Fixed the following issue:
- The Convert Files option in ViewNX-i would produce solid gray images when applied to photos shot with the D500 and later processed using the Fisheye option in Capture NX-D.
Download: ViewNX-i v.1.2.2