a derived grid is deriving from itself, directly or through a chain. The cycle was refused; check the `from` of each grid in the chain.

Warnings reference › source.derived.cycle

Identifier

source.derived.cycle

Raised by

The grid (core)

Since

1.10.0

What happened

A derived grid may itself be the source of another - a profile *of* the top five is a real request - so a cycle is reachable, and a cycle here would recurse until the stack ran out rather than merely producing a wrong answer. The derivation is refused and the grid keeps whatever rows it had.

The fix

Check the from of every grid in the chain; one of them points back.

Reference

Covered in full at the API reference.