# studio-timer-runs-while

> An action starts or stops a timer that runs by itself.

| | |
| --- | --- |
| Kind | Studio problem |
| Reported by | Studio validation: the Problems panel, Play, Publish and the MCP `validate` tool |
| Code in the Studio | `timer-runs-while` |

A timer with _runs while_ follows its condition. Starting, stopping or pausing it by an action would fight that rule.

## Fix

- Remove the action, or clear _runs while_ on the timer and control it with actions only.

## See also

- [Problems and validation](/studio/playtesting)