I am really struggling here...I am having severe noise issues with my new Fujifilm X-Pro 2. I have downloaded version 6.4 of Lightroom and am still suffereing from EXTREME noise at low iso's (640)...I am on my second camera as I though that was the issue initally, but I now think there is a problem with 6.4. Please help!
I have downloaded the 6.4 update as an app - was that my cock-up?
There's only one download file of Lightroom 6.4, so that's very unlikely that the problem is the specific download.
There are a number of threads in these forums about problems with Fuji cameras, maybe one of them has the answer for your problem.
But if you are having trouble with Noise, it would definitely be helpful if you could post a screen capture of the problem, showing part of the photo blown up 1:1, and also showing the settings in your Details panel in Lightroom; and make the full original photo available on DropBox or similar service.