I searched for ''koalephant'' and found nothing (surprisingly) so here it is:
I started a new SW world, then traveled to a RoG world with the Seaworthy. Whenever I hunt for a Koalephant and go near him, instead of running away, he just stops and do his ''on alert'' animation, just like the beefalos. He then stay immobile for ever and ever, see picture below. Winter duration was set to long when the RoG world was generated through the Seaworthy.
This bug also occured when I started a new game directly in the RoG world with all settings to default.
As this bug never occured to me before SW, I thought that's where I should post the bug report.
A - SW start -Create a new save (start in SW) -Find the Seaworthy and travel to RoG world -Hunt a Koalephant and stand next to him B - RoG start -Create a new save (start in RoG) -Hunt a Koalephant and stand next to him