if i remember correctly, when you set up the dice for the herd move, you need to paste direction advice, as the arrow is only included in gnubg for your move, which is really the guest's move. (hence the direction arrow appears for the guest's diagram, whereas the herd's dice are the computer player's dice, usually auto)
but if you rewind back in gnubg a move, the arrow appears or disappears - i forget which
either way i usu tried to screenshot the arrowed diagram if i had time, but i know if u r rushing out etc, it is not always possible, and we are all grateful for a posted poll, which may occasionally be bereft of some pertinant info or from a different view, but can usu be worked out by looking at the previous post etc
thx again for your time