Which version of macOS are you using? And which camera exactly? The RAW development is specific for each camera model, not only the brand.
After the Sierra 10.12.4 update some camera models had this problem with the most recent RAW support, making the developed RAW files turn pink.
We have seen similar reports for the Canon EOS M5 by several users, see this link: Canon M5 RAW pictures have a pink hue on 10.12.4
The Canon EOS M5 with the same "pink hue" problem as your Fuji camera has been released with macOS 10.12.2 (https://discussions.apple.com/thread/7796659?answerId=31143011022#31143011022), when the support for the Fujifilm X-T2 came to. Is that your camera?
It may be a bug, that might be fixed in a future system update. Lightroom uses Adobe RAW, and since this is working well for your camera model, I'd use Lightroom for the time being to process your RAW files.
And send a bug report to Apple about the RAW problem: https://www.apple.com/feedback/photos.html