Permanent "cannot deliver" Icon

The Icon above some trucks that indicates that it can't dump it's load won't go away.

As soon as the truck would be able to dump it's load, it should dissappear.

Steps to reproduce the behavior:

If trucks are waiting at their mining control tower because they can't dump their load and you deconstruct that tower, the trucks will constantly have the icon that they can't deliver their load.
They can continue their work normally but they will have this icon and the message in their information window.

Game Version EA 0.4.4

The trucks in the screenshot are working as they should even if the icon is still there.

Can you please provide a save file of this happening?

I think I have found a repro case

Now I can't even reproduce it like this morning...
All affected trucks belonged to my coalmine tower. I build an new one withe the same settings, deleted the old one and assigned the trucks to the new one. 10minutes later I saw the iconproblem. I tried it at another mine and was pretty sure that I had reproduced it. Maybe it was a coincidence
m1.save

Files not imported: m1.save

I have the same issue. Cannot deliver error persists even after delivery is made and new fill type is loaded.

3.save

Files not imported: 3.save

I'm attaching a save with several trucks displaying the issue:
save_22-06-14_17-28-48.save

Files not imported: save_22-06-14_17-28-48.save

Thanks for your report. This should now be fixed in v0.4.4a