Train objects with "Drivercar > 0" problems

Hi, let's just in to the question.

Some of my works using "Passenger Car" as a panel objects, and placed somewhere in [Car > 0] in extensions file using driverCar options at train.dat file. In older version like 1.5 and below, every single car object in front of driverCar is shown at panel mode (F1). But somehow after some newer version just like 1.6 until most recent version of openBVE, somehow this trick can't be applied and any object except panel object will not shown. I don't know exactly what version that started to not shown anymore.

I also tried to use train.xml (or extensions xml file?) to use "Interior file" and "Exterior File" but this won't change anything.

Can anyone figure out what's happened? Thanks before 

The short answer there is that this got fixed as a bug.

However, I've now added an option to the current daily build, applicable in either train.xml or extensions.cfg as follows:

VisibleFromInterior - If set to true, this object remains visible from an interior view from another car.

See how this works for your purposes.

https://vps.bvecornwall.co.uk/OpenBVE/Builds/OpenBVE-2020-07-19.zip

Worked with no error. Thanks