Updated my cluster to 331.1, they're not showing up on favorites or survivors anymore, when i try joining from steam or from site i get "Unable to query server info for invite". Anyone able to help, nothing on FAQ for this

Same here bud

Same here... Getting unable to query server info for invite error

Appearently it's a *bug* where someone forgot to add the client update to steam as well. Best thing to do is wait. 

Same here.

Common WildCard issues. I would imagine it will be resolved by either Steam or WC by Tuesday, since today's one of those family Holidays in the U.S.

Same. Is it fixed for anyone else who had this problem?

Happening for me nearly every update.

I have the same issue is there a fix for it. It has been 2-3 weeks now and no change.

It seems to have been fixed for me. So not sure what's going on otherwise? Maybe submit an email ticket in as these forums are just for community support, and as I am no longer experiencing the issue, I wouldn't know where to start with troubleshooting your server no longer showing up, outside of the normal stuff of making sure your server hasn't changed IP Addresses, and confirming you've not recently cleared your ARK Cache.