S9 Time Change Bug?

I saw exactly the same thing for exactly the same time period. Funny thing though, its not reflected in the summary statistics -- they show consistent with use all through that hour.

I also see a really weird looking AHI graph -- it fold back on itself -- kind of resembles a backwards R with the vertical line at the 2:00 mark.
I am at work so cannot post pics of it -- will tonight if there's not a resolution to this.
I'll try to describe it.
The chart is at 0 at 1 AM and straight line ramps up to 2 at about 1:58 (that part looks normal) and then straight line ramps backwards up to 3 at about 1:45 AM! (so at 1:45 AM I actually have two values depicted -- one a smidgen above 1.5 on the way forward and the one at 3:00 at the end of the backwards ramp) -- then runs a straight line across to 2:00:28 and drops straight down to zero.

Looks to me like somebody really botched a DST code -- decoded the wrong day, actually did a partial fall back and then did a full spring forward.

In looking closer it looks like I have a double graph on the snore index (have to really expand the scale to see it) going all the way back to 1 AM.
The Minute vent, Flow Limitation and leak charts all look pretty normal except for the hole in the data.

Basically it looks like it: A) screwed up date/time calculation on time change (i.e. missed by 1 day) and B) screwed up and fell back and hour and overwrote data and C) finally sprang forward an hour and left the data hole.

NOTE: this is also posted in the Changing time in the S9 & S8 for DST (minor update)
I felt it warranted being pulled out into its own thread. Sorry if it messes anybody up.