Thanks for the feedback @PureGro1 (and everyone else).
I know exactly what you are talking about when you mention certain putts getting away if you try to slam them. In this case it was definitely not a slam attempt, just wanted to lag it up there for a sure birdie and if happened to go in for eagle all the better. And yes, a misjudgement on the power, or fringe not taking as much effect as expected, could end up 5-10', even 15' away, but I can't come up with how it can go 28' by. I mean, that's a 32' total distance on a 15' scale @ 20%?
Anyway, thanks to all who tried to give valid explanations. Now that I know how to record shots I can review any future anomalies for operator error and have concrete video evidence before posting. Hopefully it was just a bad couple of days and things will get back to normal for a while.