I can't make out the bottom left, make sure that the run # on the bottom matches the run # at the top of the chart. this graph might be for a diff run. Only other thing that it could be is that there was a peak somewhere that was recorded (but small peaks are usually removed by setting the Smoothing level to 5.
that chart is definitely off! you should address this with the shop that owns the dyno. see how many others they may have done incorrectly. even if the numbers were not adjusted to SAE (which according to the graph they were) it would not be shown on this graph, it would be a different chart showing your uncorrected numbers. Sorry dude, I'm out of guesses. :dunno: