That looks like the old "TEF hasnt connected properly regardless of what the dot colour is" picto. It tends to appear on any deer when TEF is having a dumb.

@Draak: Right, I remember that now. At first I thought the map was glitching, but if it was a connection problem, that would explain why my picto wasn't appearing on it.

@Tuo: Ah, I wasn't sure if that was the right one or not, thanks for confirming.