[Beta 7.2] A ghost hauler?

[Valguris]

In the attached save I'm standing right next to a hauler, but I can't attack him. I get a message "no melee target". I also can't view his info, as if this tile was an empty floor tile.

EDIT: It was due to sensors; it moved out of vision but, for some reason, sensor data of him remained where I could see normally.

[Kyzrati]

Fixed this one just earlier today after the conversation with mtf! It shouldn't happen anymore from Beta 8 onward, but keep an eye out just in case. There are numerous sources of signals and most of them were covered before, but one had slipped through. Maybe there are more? Probably not, but more might be added... (pretty much all go through the same system anyway, intentionally to keep things simple, but one section of the code does require multiple explicit checks for special cases)