Anyone have any idea why my Lost Isle map for ark ( clustered )wiped and fresh started when nothing else did? of course my community is pissed this is our home base and of course we dont have a back up good enough to be worth it. 

Normally when ARK tries to load a map that's corrupted, rather than cause a hardware fault it will wipe the map back to 0 as part of the recovery process. Without knowing what mods you're running, how large your map file was, your server CPU or RAM usage, I can only make a rough guestimation as to what occurred.