rows.move() is not supported under ingest.dropSourceRows: the source objects have been released and the store cannot reorder its columns in place. Enable retainSource (leave dropSourceRows off) to reorder rows.

Warnings reference › source.moveRow.dropped

Identifier

source.moveRow.dropped

Raised by

The grid (core)

Since

1.17.0

What happened

Reordering rows means reordering the array they live in, and under dropSourceRows there is no array: the store holds the data columnwise. Reordering columns row by row is a different operation the store does not offer, so the move is refused loudly rather than doing nothing quietly - or, worse, corrupting the physical indexing the store keys on.

The fix

Leave ingest.dropSourceRows off for a grid whose rows can be reordered.

Reference

Covered in full at the API reference.