The grid (core) · console.warn

statistics.compare: one of the two groups ha...

Printed by The grid (core), prefixed [lattice], since 1.106.0.

Warnings reference › compare:empty

Identifier: compare:empty
Raised by: The grid (core)
Since: 1.106.0

What happened

Both group keys are valid, and one of them matches no row among the rows the grid is currently showing. There is nothing to test against, so the call returns null. A filter that excludes one arm of the comparison is the usual cause.

The fix

Widen the filters, or compare two groups that are both present.

Reference

Covered in full at the API reference.