I thank you for your patience and the time spent trying to figure out the issue.
The problem might be on my side apparently.
i will try to upload the file of my SP save with the help of a friend, as i'm pretty bad with such things….
But i can tell you we have a "similar" issue on our private sever as well, it's def not as bad though:
we can see our ice wyverns on Crystal isles (uploaded from valguero) in the wild dinos section of arkviewer (again, with no name). But besides that everything is working fine on the multiplayer side.
cya soon mate and have a good one !