I have spent a few hours on this one in the last couple of days, and I feel there is something amiss.
I walked all the way from a lodge to the spawn coordinates and never got a mission activated type message. I dumped a tent and a tripod about 40 metres from the spawn coordinates. A few respawns later and it was the same glacier female in the same place each time. I did get the 'mission activated' message successfully on each occasion.
Change of tactics: I put a barrel on the spawn point, and two tents 400m away to the NW and NE respectively. The glacier female is still spawning; a search of the 'island' north of the river gave me a few male tracks, plus a further female who was plain black, but no blonde females so far.
As has been said, this feels out of all proportion for its difficulty - I did the Goldilocks mission tonight in about 15 minutes for instance (but still can't bring a Canada Goose down with a longbow!!).
I'll wait for your video caledonianblues; cream or custard with the pie?