NPCReplacements=(FromClassName="Apex_Wyvern_Character_BP_C",ToClassName="")
NPCReplacements=(FromClassName="Gamma_Wyvern_Character_BP_C",ToClassName="")
NPCReplacements=(FromClassName="Beta_Wyvern_Character_BP_C",ToClassName="")
NPCReplacements=(FromClassName="Alpha_Wyvern_Character_BP_C",ToClassName="")

Put this in your Game.ini to disable the wyverns spawns that apparently cause a crash.

I will add this to the mod description now, I'm not sure if it happens to everyone yet so I dont want to disable them yet

i can confirm this happens on my server, i was able to repeat it 3 times in a row using the same apex wyvern. maybe its an issue with the blood overlay, it seems to crash everytime i get the wyvern down to about 50% health

Yeah, mines the same as bigTINGTING, i can hit them a few times... but it seems to be when they're either low on health, or the kill shot that it crashes (its hard to tell exactly) Ill try and do more testing today, im not sure if its only the Apex .. or all Wyvrens.

also i added the spawn replacements to the game.ini and they are still managing to spawn

I have managed to kill a few Gamma's without a crash, I don't have anything good enough to kill anything higher so I think it "might" be only the Apex...

i concure i disabled the apex wyverns and i havent had any more crashes with the wyverns ive killed tons of the alpha gamma's and beta dragons without a problem

I have the same problem with an apex wyvern. Once I get it to low health (might be the killing blow) it just keeps flying away and I can not hit it anymore. I returned to my base (it was attacking my base, that's why I was fighting it) and the base is completely gone, as if i had never build anythign there. I can not land and my pteranodon I am on keeps being on fire even thought the timer shows 0 for the burn damage. moments later I get disconnected. I then have to restart the server an everythign is fine, I'm rolled back to the last save game. I do not get any error message but if there is a hidden log somewhere let me know and I'll dig for it.

I will add the code to the game.ini and see if it prevents them from spawning. I'll report back.

any update on weither the ini setting helped with your crash? I'm having the same issue.

Yeah, I disabled just the Apex Wyvren Spawn in the ini and did a Dino wipe, has been fine since.

Originally posted by Lukep1989:

any update on weither the ini setting helped with your crash? I'm having the same issue.

It seemed to work for me as well.

no the ini did not work

apex wyvern crashes my game, I entered the code written in game.ini but it didn't change