With the latest version I now get this error which prevents me from loading the save

The mod Vehicle Wagon 2 (4.0.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event VehicleWagon2::on_configuration_changed
VehicleWagon2/script/renderVisuals.lua:370: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
VehicleWagon2/script/renderVisuals.lua:370: in function 'clearIcon'
VehicleWagon2/script/initialize.lua:174: in function 'OnConfigurationChanged'
VehicleWagon2/control.lua:55: in function <VehicleWagon2/control.lua:54>

Got the error also. my car is stuck on the train. and can load the safe :(

The mod Vehicle Wagon 2 (4.0.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event VehicleWagon2::on_configuration_changed
VehicleWagon2/script/renderVisuals.lua:370: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
VehicleWagon2/script/renderVisuals.lua:370: in function 'clearIcon'
VehicleWagon2/script/initialize.lua:174: in function 'OnConfigurationChanged'
VehicleWagon2/control.lua:55: in function <VehicleWagon2/control.lua:54>

Thanks for the report! Should be fixed now in 4.0.3. That's what I get for publishing code at 3am while jetlagged :)

Yep works now, thank you !!