New Holland Combine won't unload

[Bickford Farms]

In one of my save games, I think it was the first of six combines I bought, suddenly stopped unloading corn, I believe it wouldn't harvest or unload. I reset it a couple times and sold one combine, thinking I may have exceeded a limit? That didn't help.
Anyway I finally parked it and kept playing.
I cannot see how you can sell a particular vehicle if you own several. It seems they are sold in reverse order. last one in is first one out.
Any ideas how to fix it?

[danielhawkins]

Not sure how to fix the problem without selling, others might know.

If you don't care selling that combine though you can drive it too the shop and park it in rectangle outlined with the yellow and black stripe and then you go the little sell icon, press R to activate and then sell. You also get an extra 20% on top of the normal sell price selling it like this.
You have to sell this way if you are to sell a specific vehicle. I am pretty sure its the only way to sell a specific vehicle.

[BigBadAllis]

Yes that is the best way to sell a specific machine. Good luck

Jason