DNG files from my Mavic are no longer working. Mac apps can't open them. DNGs used to work fine but one of the recent firmware updates broke saving DNG photos. I think 01.03.1000 was supposed to fix it, but it didn't.


Is this a known issue? Are DNGs working for anyone else?

Welcome to the party. There are a couple issues with DNG and later versions of MacOS, one issue purportedly has been addressed by the latest firmware update, the remaining one has not, but there are workarounds -- see this thread summary: MacOS Sierra 10.12.5 vs. DNG? [WORKAROUND]

Could you please provide us a few original DNG files for us? Upload it to Dropbox and paste the link here. Appreciate it.