Check these in order
- Item limit: your count is in the Mirror Item panel. On the free plan the limit is 5. See pricing and item limits.
- Link: open the Mirror Item tab and confirm the other board is still listed in Where this item lives.
- Columns: if only some fields are stale, see columns not syncing.
- Webhooks: in Board Configuration, check they show Active. If the person who installed them left, transfer ownership.
- monday.com status: check status.monday.com for an outage.
- Make a small edit to the item to trigger a fresh sync.
Tip: Started after restructuring a board, such as renaming groups or columns? Re-saving the mirror usually fixes it.
