I gave princess a building to target in hex 1504, but I get the following message:
No building to target in Hex (16,5), ignoring.
Now, after noticing that princess was not moving towards the strategic target and seeing this message, I checked that there was a building in hex 1504 (hovered my mouse and the hex description says there is a building).
So, playing on a 25x25 map, what hex does (16,5) correspond to? Hex 1605?
Never mind, princess is consistently add +1 to both the X and Y coordinates. I've already posted a bug report.