# 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 )