`react-doctor/remotion-no-module-scope-delay-render`

Module-scoped delayRender blocks every composition

Category: Bugs
Severity: error
Source: oxlint-plugin-react-doctor
Framework: global
Enabled when: remotion:4
Default: Enabled

Validate the diagnostic

Confirm the reported code matches this rule before you edit it.

Confirm the reported code matches react-doctor/remotion-no-module-scope-delay-render. Compare it with the Before example and verify the same API, framework, and execution context. Treat it as a false positive only when one of those conditions differs.

Compare the code

The corrected pattern shows a focused way to address the diagnostic.

Reported pattern

import { continueRender, delayRender } from "remotion";
import { useEffect } from "react";

const renderHandle = delayRender();

export const Scene = () => {
  useEffect(() => continueRender(renderHandle), []);
  return null;
};

Corrected pattern

import { useDelayRender } from "remotion";
import { useEffect, useState } from "react";

export const Scene = () => {
  const { continueRender, delayRender } = useDelayRender();
  const [renderHandle] = useState(() => delayRender());
  useEffect(() => continueRender(renderHandle), [continueRender, renderHandle]);
  return null;
};

How to fix

Use the corrected pattern as a reference. Preserve behavior that the rule does not require you to change.

Copyable fix prompt

Copy this self-contained prompt into your coding agent after you confirm the diagnostic.

Fix every confirmed react-doctor/remotion-no-module-scope-delay-render diagnostic in the current repository. Required change: - Create the handle once inside the component. Use useDelayRender() on Remotion 4.0.342 or newer, or lazy useState(() => delayRender()) on earlier versions.

Reference transformation:Before:

import { continueRender, delayRender } from "remotion";
import { useEffect } from "react";

const renderHandle = delayRender();

export const Scene = () => {
  useEffect(() => continueRender(renderHandle), []);
  return null;
};

After:

import { useDelayRender } from "remotion";
import { useEffect, useState } from "react";

export const Scene = () => {
  const { continueRender, delayRender } = useDelayRender();
  const [renderHandle] = useState(() => delayRender());
  useEffect(() => continueRender(renderHandle), [continueRender, renderHandle]);
  return null;
};

Constraints: - Confirm the reported code matches the Before pattern. - Make the smallest change that fixes the root cause. - Preserve behavior and interfaces unrelated to this diagnostic. - Reuse existing project components, utilities, and conventions. - Do not introduce render-phase side effects, render-phase state updates, or Hooks rule violations. - Adapt identifiers and framework details instead of copying blindly. - Do not disable the rule or suppress matching code. - Confirm this rule is enabled for the project: remotion:4. Verification: - Run focused tests for the changed behavior. - Run React Doctor and confirm this diagnostic no longer appears. - Report the files changed and any checks you could not run.

More Bugs rules from the rules reference:

react-doctor/remotion-no-native-media-elements: Native media element bypasses Remotion loading
react-doctor/remotion-no-next-image: Next.js Image can flicker in Remotion
react-doctor/remotion-stable-delay-render-handle: delayRender handle is recreated during render
react-doctor/rendering-conditional-render: Change to `{items.length > 0 && <List />}` or use a ternary: `{items.length ? <List /> : null}`
react-doctor/rendering-hydration-mismatch-time: Wrap dynamic time/random values in useEffect+useState (client-only) or add suppressHydrationWarning to the parent if intentional

react-doctor/remotion-no-module-scope-delay-render