flaws in fritz?

first post here, so please don't kill me if i screwed up the etiquette

this is an uninteresting game i annotated. I have 4 uscf games under my belt, my opponent 1.  it's uninteresting even to me who will be around 1350 when this tournament gets uploaded to uscf... but the point here is that going into move 31, when analyzing my game with fritz, fritz 13 in the main analysis shows the position as lost for me, but fritz 6 says rff1 saves me, but why it does i have no idea. Is this a known glitch in fritz6 light?

for what it's worth, i tried annotating the game on the app provided but it hasnt saved the comments. not quite sure why but that's probably a user error

Fritz can be hard to use in a way that forces it to make sense, which is why I stick with a toaster.