This can be resolved easily by merging the series entries through the Manage Pick Lists screen.
Here’s how:
- From the menu, go to Manage Pick Lists
- Now, choose the Series list
- At the top right, tap the “Merge Mode” button.
- Tap the button top right and select “Enter merge mode”.
- Find the duplicate series using the search box at the top.
- Checkbox the two series you want to merge.
- Tap the Merge button on the bottom right.
- Finally, choose the Series entry you want to merge TO, that is, the one you want to keep. (in most cases, that would be the one that contains the most issues)