Overlapping Order Capsules
The order capsules may overlap, if their prices are the same. When they do, the capsule would show the total number of overlapping capsules in the circle in the middle of the capsule:
Clicking on that circle will cycle through the overlapping capsules, showing them one by one.
You can also right-click on the circle, which will show you all the overlapping capsules and allow you to select the one to be shown.