# animator-event-window-invalid

> Talos next · Since 0.7

An animation event's `until` / `untilFrame` is not a window: not above its start, past the end of the clip, or in other units than `at` / `frame`.

| | |
|---|---|
| Severity | `error` |
| Source | `contract` |
| Offers a fix patch | no |

## Since / changed

See the version chips above and what changed.