Eecher welcome to the forum and congratulations on your new Adventure!
This doesn't sound too serious. The sprockets don't slip and a chain skip is almost impossible; but you can double check by making sure the sprocket's center cog is in the 4th (or center) link. To get a precise feel for how far off center your masts are, make sure your pedals are in the same adjustment hole and are pushed forward to remove any slack and then see how they line up. There can be 2 or 3 degrees of factory variance and that may be all you see here. Nevertheless, there is a way to bring them into perfect alignment.
In the picture below you see that each cable attaches to the drum on each side. These are adjustable by turning their Nyloc nuts.
To center a fin, simply loosen the nut on one side and tighten it's counterpart on the other side. It doesn't take much. Operate the Drive by hand after each adjustment before re-checking your reading.
If any of your cables are too tight the Drive will start to bind; if too loose, the fins will lag a bit. You want to be able to squeeze the idler cable and front chain/cable about 1/8" and the rear chain/cable about 3/16" or thereabouts. The order of adjustment should be front to back, as the idler cable influences the other cables as well.
A note here on the Locnuts -- after a few adjustments they may start to loose their grip. If this happens you can double-nut them or use Locktite (blue) to stablize them.
You'll find more info on lubing, adjustment, mast straightening and other topics by using the search feature or looking at the FAQ section here.
