The grid (rendering) · console.warn

unknown tool panel "{name}"

Printed by The grid (rendering), prefixed [lattice], since 1.0.1.

Warnings reference › toolpanel:*

Identifier: toolpanel:*
Raised by: The grid (rendering)
Since: 1.0.1

What happened

The tool-panel list named a panel that does not exist, so that entry is dropped: its tab is not built and the panel is absent. The other panels in the list are mounted normally.

The fix

Use one of the panel names the grid ships, or register your own before creating the grid.

The smallest fix

createGrid(el, { toolPanel: { panels: ['columns', 'filters'] } });

Reference

Covered in full at the API reference.