the "order" comparator threw ({error}); the ...

Warnings reference › kanban:order:throws

Identifier

kanban:order:throws

Raised by

Kanban

Since

1.115.0

What happened

The board's order comparator (config order, or board.setOrder(fn)) threw while sorting a column's cards. The board sorts a copy, so the column stays in the order it had before the comparator ran (the orderProperty order, or arrival order) and nothing goes blank. Reported once per board.

The fix

Make the comparator total over every card in the column: guard missing or non-comparable values (a.row.score ?? 0) and never throw; setOrder(null) clears it.

Reference

Covered in full at the API reference.