# Introduction
Fixes https://github.com/twentyhq/twenty/issues/11718
From having
[noUncheckedIndexedAccess](https://www.typescriptlang.org/tsconfig/#noUncheckedIndexedAccess)
set to false we have a flakiness resulting in a such bug right here as
the below operation can return `undefined` but not type as it should:
```ts
const recordId = allRecordIds[position.row];
```
About to create a Tech project about the topic, activating the flag ends
in 1500 typescript erros from the style solution compilation ( which
means can contains several duplicated errors )
8b63d45b70