Very annoying is the fact that it is almost impossible to raise the dino on which your fellow tribesman sits on at Argentavis. Instead, he snatches a rider. Because of this, it is bad to extract resources.
During the server lag, I jumped on the managarm, after which I disappeared along with dino and equipment. The game offered me to just choose a bed, as if I had just logged into the server from the cloud. No records left in the journal after this.