Hi
mwerneburg, welcome to SC4D, and thanks for the kind words!
Doubled icons are the result of having two full copies of an icon exemplar. They're unusual files, in that rather than overriding one another, they simply multiply, if multiple full copies of them exist. NAM 39 does not contain any copies of the base networks' icon exemplars, so the most likely possibility is that you may have pieces of an old NAM installation around, or possibly multiple copies of SimCity_1.dat (which is where the original icon exemplars are located).
If you merged files into SimCity_1.dat as part of CAM installation (which is part of the install process for CAM 2.1.0), and the backups are still laying out somewhere where the game might load them, that has the potential to cause such an issue.
There are ways to look up where duplicate files are stored . . . the most recent utility I know of is
SC4DataNode by
rivit. It's also possible to do using the Plugins Analyser tool in
ilive's Reader, which has been around in some form for a very long time.
If it helps in finding them, the hex info for the icons is that they're Type 0x6534284a, Group 0x2a3858e4, and all have Instances in the 0x0000002# range. Here's the full list of Instance IDs (IID)--finding one of these should find the rest:
- Road: 0x00000020
- Elevated Highway: 0x00000021
- Rail: 0x00000022
- Subway: 0x00000023
- Avenue: 0x00000024
- Light Rail (Elevated Rail): 0x00000025
- Street: 0x0000002A
- One-Way Road: 0x0000002B
- Ground Highway: 0x0000002D
- Monorail: 0x0000002E
Hope that helps!
-Alex