Data Router: value {value} already routes to another viewer; with overlap:false only the first receives rows. Pass createDataRouter({ overlap: true }) to fan one value to several viewers.

Warnings reference › data-router:overlap:*

Identifier

data-router:overlap:*

Raised by

Data Router

Since

1.36.0

What happened

Two value-routes claim the same partition value, and the router is in its default exclusive mode, so only the first route receives those rows - the second is attached, live and empty. The check is deliberately strict: it fires only when the value is a scalar and an existing route claims exactly the same one, so distinct-value routing and overlap: true are never accused.

The fix

Route each value once, or create the router with overlap: true when one value really is meant to feed several viewers.

The smallest fix

createDataRouter({ overlap: true });

Reference

Covered in full at the API reference.