Bug: fromCallback is not cleaning up after onError of child states
Author: alita-mooreCreated Dec 16, 2025Updated Dec 16, 2025
Labelsbug
XState version
XState version 5
Description
I am designing a helper that basically enables the use of fromPromise to be stateful for use in react.
Expected result
When an error occurs in the Invoking Actor state I expect the error to propagate and the signal listener to cleanup its state.
Actual result
the listener stays subscribed sending update events to the stopped actor.
Reproduction
https://stackblitz.com/edit/vitejs-vite-hg1apcsw
Additional context
in the repro, hit "refresh" until an "error" occurs. And then notice that the console complains about the stopped actor.
Source: statelyai/xstate