Recovered Trains do not Refuel in a Depot with Fuel?

Yea basically the Header.
I recovered 4 Trains because they ran out of fuel. Now they are sitting with no Fuel inside of my Depot which has Fuel. Why does the Depot not refuel my Trains ? o.o
Thats seems a bit silly.

Having this issue as well.

Workaround: you can go to the train manager, there's a "pop out" button to reopen the trains menu even if you can't click on the train itself. From there you can refuel with unity still.

You can also 'dismantle' then rebuild the same train. It'll show up with only fuel missing.