Anyone had this? You click to move on the map and then suddenly stop moving. Rest of the UI works, the static continues in the inventory boxes, but the convoy itself doesn't move. RMB doesn't do anything on the map and fuel continues to burn as if you were moving.
Then it runs out.
And that's it. Nothing else possible. I've had this happen a few times. Could just be that this laptop is god-awful.

Can't tell if bug or feature.

A deliberate game feature. It's meant to recreate the authenticity of being at the mercy of chance when you're surviving on a knife's edge, and being helplessly stranded in a vast desert when your luck runs out.

Whilst not being able to move when actually out of fuel is a game feature, it sounds like Normacc is stranded before he's ran out and gets to see his last fuel disappear despite not moving.

If you have it happen to you again, could you send your error log? There are other posts in these forums that explain where they can be found and where to send them.

Like Sleffie said, please send us your logs. I can't really say what might be the problem otherwise.