Image 1. A seam is running north to south just west of KBGR. This is where two charts join.
When we display charts, they can be thought of as overlapping. In areas where there are seams, you can use the Map Touch Feature to bring a chart to the foreground to be able to view the area without the seam.
Also, you can tap & hold on the map to get a pop-over of nearby information for that area. You'll be able to view information about airports, navaids, airspace, etc.
Image 2. Tap and hold to view nearby information.
Last, if you zoom near a seam of a TAC chart, it may initially look like a seam issue, but it is not. You can identify this by the white TAC line across the seam area (See image 3). In this case, zoom out so that the TAC is not showing or use the Map Touch Feature to bring the chart you desire to the foreground.
Image 3. TAC and VFR charts displayed at the same time. This is not a seam issue.