Many things have been changed as part of the PBR update, lots of tuning and tweaking for performance, etc., and what you may be seeing is the side-effect of those, it would explain the fact that you see them in the official viewer but not in FS.
Many things have been changed as part of the PBR update, lots of tuning and tweaking for performance, etc., and what you may be seeing is the side-effect of those, it would explain the fact that you see them in the official viewer but not in FS.