My BB won is positive but i have a negative ROI

What exactly does this mean about my results? The only thing I can think of but I'm not sure if this has anything to do with it is I have a lot of first place cashes but too few lower cashes?
I play SNGs anywhere from single table to 45 man.
Any possible explanations are appreciated, thanks.

bb/100 won is a measurement for cash games, whereas ROI is a measurement for MTT/SNG.

Yeah, how many big blinds you won or lost is pretty worthless info for tourneys.

OK, then can you answer this question: What does it mean if my money won without showdown (redline) is positive and my money won with showdown is negative?

means you bet a lot and don't call much

in terms of possible leaks, you might be bluffing too much in the wrong places or value betting too weak a range of hands