(EWS Coal Hopper Help) Needed

[battlearrow]

hi everyone i have eldavos great HTA Coal hopper wagon there is a problem with the Hopper bay doors what is that unloading some doors close others remain open i also have same problem GBRf HYA & Fastline IIA can abody shed light on this problem or better still solve it, it would look odd driving round with half you bay doors open

thanks