just came across this problem today for the first time when trying to import RAF files taken on my Fuji X-T2. Now the actual import works fine using the adaptor I bought which puts the, straight in to my camera roll. You can also see the actual colours as I took it in camera roll too.
The problem is that when I pulled them over to Lightroom I found that it just made every picture black and white. Not ideal really when you're wanting to make a sunset picture look great.
Has as anyone else has this issue at all? Both my iPad and Lightroom versions are up to date so not sure what sis going on.