Transmission won't shift if . . . .

ktmmike

Help please. Has anyone experienced this:

I have a new 2014 370Z with automatic transmission that will go through ALL the gears just fine if:

1. I put the shift lever into D and just go, OR

2. I put the shift lever into the manual gate (left track), and use the paddle shifters to go through all the gears.

BUT if I put the shift lever into manual, and then try to shift to the next gear (up or down), USING THE SHIFT LEVER, the transmission position indicator light jumps from the gear number to D,
and transmission goes through the REST of the gears just fine in D, even though the shift lever is still in the manual track.

The car has less than 800 miles on it so it's under warranty.
There's obviously nothing wrong with the transmission itself.
So if this is caused by something simple, I'd rather correct it myself if possible.

Have any of you experienced or corrected this problem before???

Is there a thread on this problem somewhere???

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3 KTM SUPERMOTOS & a 2014 370Z