Truck assigned to mine control tower does not dump

About the time I discovered medium trucks Some trucks assigned to a mine control tower stopped dumping rocks, in this case, in the dumping zone. The moment the truck gets unassigned it will dump like it is supposed to. There are loose storages for ore and rocks and a loose storage without designation (should be dirt).

Reproduce:
Load the save game
go to to the mine control tower by the iron zone.
The one truck stays confused.

This may be an effect of assigning a loose storage without setting its content.

Expected behavior
As there is a loose storage for rocks assigned, they should be transported there or at least they sould be dumped in zone.

Additional context

• Game version: Beta 0.3.10 steam
  

Save game from image above
truck no dump.save

Files not imported: truck no dump.save

Note that this issue is before version 0.4.x released in Early Access.
Quoting from above: "This may be an effect of assigning a loose storage without setting its content."
Based on looking at the above info, I would say this issue should be closed, 'By Design'.

Thanks for your report. As this seems to be issue in beta (older version) and it is not clear what is going on here we have to close it.