During negotiations, when having a certain number of arguments, the one at the top center will not display enemy attack numbers correctly, due to the indicator being too far above the displayed area of the screen (1080p fullscreen)
Edit: it seems to happen, when the player character is additionally(!) hit by something... it also fixes itself when tabbing out of the fullscreen and then back in.
I'll make sure to add a screenshot, when I notice this problem again...
Enter a negotiation event, then add more arguments on your character end (enemy inceptions and such will also do the trick). At one point, the top center argument will not display enemy attacks correctly.