# XState 5.32.3

- Product: XState (https://whatsnew.fyi/product/xstate)
- Vendor: Stately
- Date: 2026-07-01
- Version: 5.32.3
- Original notes: https://github.com/statelyai/xstate/releases/tag/xstate%405.32.3
- Permalink: https://whatsnew.fyi/product/xstate/releases/5.32.3

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **fixed** — Fixed initialTransition and transition throwing "Actor with system ID '...' already exists" error when the machine contains an invoke with a systemId by replacing the actor's system reference with a freshly-created system in createInertActorScope
- **fixed** — Add missing https:// protocol to the Stately Studio link in the README

###### Patch Changes

-   [#5575](https://github.com/statelyai/xstate/pull/5575) [`830db8b`](https://github.com/statelyai/xstate/commit/830db8b6b4ac81331bdcae44aa7ec522fa959960) Thanks [@JSap0914](https://github.com/JSap0914)! - Fixed `initialTransition` (and `transition`) throwing `"Actor with system ID '...' already exists"` when the machine contains an `invoke` with a `systemId`.

    **Root cause:** `createInertActorScope` used `createActor(logic)` internally, which eagerly ran `getInitialSnapshot` during construction and registered any `systemId`-carrying child actors in the system. When the caller then ran `getInitialSnapshot` (or `transition`) via the returned scope, the same system was reused, causing the duplicate-registration error.

    **Fix:** After creating the internal actor, `createInertActorScope` now replaces the actor's system reference with a freshly-created system. Child actors spawned by the subsequent caller-driven `getInitialSnapshot` / `transition` invocation therefore register into a clean system with no pre-existing entries.

    ```ts
    const machine = createMachine({
      initial: 'idle',
      states: {
        idle: {
          invoke: {
            src: fromPromise(async () => 42),
            systemId: 'myActor' // previously caused: "Actor with system ID 'myActor' already exists"
          }
        }
      }
    });

    // Now works correctly — returns [snapshot, actions] without throwing
    const [snapshot, actions] = initialTransition(machine);
    ```

-   [#5585](https://github.com/statelyai/xstate/pull/5585) [`a551a2b`](https://github.com/statelyai/xstate/commit/a551a2b81fbbe05f8ffc5b3cdaea503d01ce477e) Thanks [@RubenFricke](https://github.com/RubenFricke)! - Add missing https:// protocol to the Stately Studio link in the README