Am having the same issue on my Premiere Pro Project.
Seems like my "raw" is pretty much stuck at whatever i shot in because every time i try and change a setting or two, it kind of gets stuck at the problematic area with little to no way to revert back to original except to re-import the problem clip back into the project.
On top of this shenanigan, I'm also experiencing weird crashes in premiere with certain braw clips.
Deleting the problem clip and re-importing seems to make it work but it sucks when you have to keep saving after every move before you find another "problem clip"
Windows 10, Premiere Pro CC updated, Braw 1.5, braw 6k from a bmpcc6k at various frame rates (50 fps, 60fps, 100fps and 120 fps).
i7-5960X, 32gb Ram, GTX 1070.