Freeware/shareware like ffmbc will rewrap files from MOV to MXF without transcoding, but it will not do DNxHD. It can do the reverse, however, which unfortunately is only somewhat helpful to you (see below).
There was another recent thread about this issue with Resolve, but since that time the Hyperdeck Software has not moved beyond the version 2.5 beta 3, so there hasn’t been any visible progress. I’m sure somebody will post here, if the problem is resolved.
In the mean time, you are better off leaving the Shuttle in DNxHD MXF mode and re-wrapping the file to MOV with ffmbc. The ffmbc command line has been posted on another video website and if you Google the proper keywords, you should be able to find the thread. That way you will have both wrapper types of the same file, so you can work in a variety of NLEs and other software.
Here’s example of what has been used for a ffmbc command line:
ffmbc -y -i Capture0001V.mxf -i Capture0001A1.mxf -i Capture0002A1.mxf
-vcodec copy -map_audio_channel 1:0:0:0:1 -map_audio_channel 2:0:0:0:1 -acodec
pcm_s16le -ac 2 -f mov Capture0001.mov
I’ve checked it with my Shuttle files and it works fine (and very fast, since there’s no transcoding involved). You can speed up the workflow by using any GUI that will work with ffmpeg as they also work with ffmbc, which is just a broadcast industry specific branch of ffmpeg.