Scores on Credit Karma and Credit Sesame are sometimes prone to wild swings for reasons that don't apply in the real world. For instance, CK has recently had some problems in which it has lost track of perfectly valid cards. CS once dropped my score by 50-60 points for no known reason at all, then for months froze my score and messed up all my data, along with a lot of other peoples.
Back in the real world, that is, on actual credit reports and actual scores banks pull on us, none of that is really happening. This is one reason you'll hear everybody around here telling you to pay no attention to those FAKO scores.
It goes up and down.. then it went up about 30 points not that long ago.
Don't follow the scores on CK as they're FAKO scores of TU. Their systematic design is in fact different from those of the FICO scoring and yield different results. Rather than focusing on the CS on CK I would follow the info that's being reported as it can helpful when pointing out derogatory info on your CRs.