Sounds like the RA I just bought. Did the same thing and I almost flipped my lid. I'm new to this so my strop isn't expensive and I noticed as I stropped a few times it quit scratching, I'm assuming due to dulling the particular portion. Mine is a RA 6/8 French Point. I have to really pay attention when I strop, but again, the initial session or two did leave some make, not deep, but if it were a nice strop....yeah; something to look at.
v/r,
Charlie