Shopify / Shopify/flash-list

[IOS] Exceeded max renders without commit. This might mean that you have duplicate keys in your keyExtractor output or your list is nested in a ScrollView causing a lot of items to render at once.

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bug P2
Dominant language
TypeScript
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Description

Exceeded max renders without commit. This might mean that you have duplicate keys in your keyExtractor output or your list is nested in a ScrollView causing a lot of items to render at once. If it's none of those and is causing a real issue or error, consider reporing this on FlashList Github

After updating to 2.2.0, I got this error on IOS. Tried to wrap FlashList not inside ScrollView and provided keyExtractor also, but still it doesn't work!

Image
  • expo: 54
  • @shopify/flash-list: "2.2.0"

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the report on iOS with Expo 54 and @shopify/flash-list 2.2.0, checking the reported keyExtractor and ScrollView conditions. The issue provides no repository file or test entry point; done means identifying a reproducible cause and confirming the render warning is resolved or correctly scoped.

Written by the indexing model from the issue text.

Assessment

Tech stack
react-native, typescript
Domain
mobile
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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