digicyc

This DID work!
 
What I had to do was FIRST Check "Clean SteamCMD" and then Click Restart.
Then once it came back up I did a Restart with Update checked in the Dropdown.
 
This Fixed the issue and I no longer have the Halloween event and I'm running on Latest Ark Server Version.
 
Thank you!

I believe you have to do something like this:
 
"To end the event first delete every folder within your SteamCMD folder. After that, delete the Engine and SteamApps folder from the server directory. Once that's done, delete the Binaries and Content from the Shootergame folder. Then run steamCMD.exe to re-download the files there, close once done and then just run the update file for the servers,  making sure -beta halloween is removed. Then use the commands destroywilddinos and forcerespawndinos and that should fix the issue of cave dinos out in the wild."
 
As stated here:
https://survivetheark.com/index.php?/forums/topic/267476-halloween-2017-event-on-unofficial-servers/&page=2&tab=comments#comment-1556222
 
However, be careful NOT to delete your Saves folder. I don't know if our hosting company has any different options here though. I'd like to see their response as this process seems a bit hacky to me.

One way that you can push past this is the click on the "Clean SteamCMD" check box and then run the update. This has resolved most issues. 

Yes. We did end up with skins in the drops and dinos (spiders etc..) spawning where they don't normally. Now halloween is over and I have updated the server and we are still getting drops with skins and weird dino spawning? How do I turn it off?????

On your control panel, you can set your map to custom. This will unlock custom launch parameters. In the information icon (i) next to the text box, you'll find an amalgam of options including quick setups for the base maps.