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The grid (core) ยท console.warn

{where} is "{value}", which is not one of {l...

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

Warnings reference › permissions.level:*

Identifier
permissions.level:*
Raised by
The grid (core)
Since
1.0.1

What happened

One entry of the permissions policy names a level that does not exist. That column is closed rather than guessed at - the same fail-closed rule as an unreadable policy - so it is hidden. The key names where the bad level came from, so two different entries are two lines.

The fix

Use one of the levels listed in the message. true and false are accepted as shorthands for the most and least permissive.

Reference

Covered in full at the API reference.