Error: Only a client can stream data.

[Mone]

Probably what happens is that the first client that connects receives the snapshot directly from the adapter. Once the item is subscribed the snapshot is handled by the server that does not send it unless you ask for it. If you don't ask the snapshot to the server it will send only the new updates but not the current status.

to fix your app, where you call

var pushtable = new OverwriteTable(page1, schema1, "MERGE");

you should add
pushtable.setSnapshotRequired(true);


please read the setSnapshotRequired documentation and the General Concepts.pdf file available under the LS_HOME/DOCS-SDKs folder