# studio-change-cycle

> A row watching a variable changes that same variable.

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

A _variable changes_ row runs whenever the variable changes. Changing it again inside that row would trigger the row forever.

## Fix

- Change a different variable, or move the change into another trigger.

## See also

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