While that happened, the server can create a Weld, as it has to, due limited replication when using FilteringEnabled. (Unless internally force-replicated) For other clients, the weld would replicate ...

How To Weld Items Items you put on the train won't stay on it if it's in motion; instead, they will usually slide off. For this purpose, the "Weld" feature exists; any item you can pick up can be ...