Hi everyone !
I'm sorry for upping this post, but I have the exact same problem and no solutions have been shared in this topic.
To sum up I have my player object created containing a TNObject component ( he syncs his position...).
This object also have child objects, having each a TNObject because they communicate other properties (such as material , strings...).
The problem is the same as the orginal poster : IDs of TNObjects childs are already on the room (by, of course, the first player connected to the room...).
I'm pretty sure that I'm doint it wrong, so I would like to have advices from you guys.
Please ask me for more details concerning my issue.