Very often, addon (emergency) vehicles in the spawner either display their gameName instead of their GXT2 name, or their vanilla GXT2 name instead of a custom/modded one.
All vehicles in this photo have a valid GXT2 entry and use new/custom gameName values, except for the Cruisers. Those use the vanilla gameNames POLICE and SHERIFF, which “correctly” resolve to their vanilla GXT2 names, Police Cruiser and Sheriff Cruiser, respectively, rather than their modded ones, which appear when this bug does not occur.

Very often, addon (emergency) vehicles in the spawner either display their gameName instead of their GXT2 name, or their vanilla GXT2 name instead of a custom/modded one.
All vehicles in this photo have a valid GXT2 entry and use new/custom gameName values, except for the Cruisers. Those use the vanilla gameNames
POLICEandSHERIFF, which “correctly” resolve to their vanilla GXT2 names, Police Cruiser and Sheriff Cruiser, respectively, rather than their modded ones, which appear when this bug does not occur.