Any time I'm out riding my horse, the game will crash while trying to autosave and upon start-up I'll spawn without my horse anywhere to be seen. I've lost at least 5 horses in 2 days to this issue and sometimes even died far away from my base because the game will 'keep going' if it happens to crash while I'm in the water or surrounded by enemies and can't start up in time to get to safety. The crashing also seems to despawn my horses from my home base at times too. Upon looking this up it looks like this glitch has been going on as early as 2014. It needs to be dealt with.