P: Can't read DNG files from Fuji X-E2 anymore

Just installed the new Lightroom CC 2015.6 / 6.6 update and i have a really strange issue. All my files are in DNG format. Everything works fine except the files from my Fuji X-E2. Lightroom and Photoshop can't read these anymore! The files get's a black exclamation mark next to them. See the screenshot. 
All files from the other Fuji X-series cameras works just fine. It's only X-E2 files that doesn't. 
The files work just fine with any other software and i tried them on a different computer which has the previous version of lightroom CC and there they work just fine!
Is there a way to make a roll-back to previous version?