# \[Archive\] "Second consistency check failed" error

**URL:** <https://builder.metamask.io/t/archive-second-consistency-check-failed-error/1692>\
**Category:** Embedded Wallets (Web3Auth)\
**Created:** [November 17, 2023, 4:11pm UTC](https://builder.metamask.io/t/archive-second-consistency-check-failed-error/1692 "2023-11-17T16:11:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jg1](https://avatars.discourse-cdn.com/v4/letter/j/3e96dc/32.png) [@jg1](https://builder.metamask.io/u/jg1)\
**Post date:** [November 17, 2023, 4:11pm UTC](https://builder.metamask.io/t/archive-second-consistency-check-failed-error/1692/1 "2023-11-17T16:11:58Z")

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> **🏛 Archived Content from Web3Auth Community**
> 
> This topic was originally posted by **jg1** on 11/17/2023.  
> This content has been migrated from our previous community forum to preserve valuable discussions.

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I am receiving this error message on some transactions. Some times the transactions go through (the same smart contract call).

`Precompute failed, error: Some(Proof(ProofError { descstring: "Second consistency check failed" }))`

What is the cause of this error and how can I recover from it?

I’m using @web3auth/mpc-core-kit 1.1.3, using wagmi with a custom connector. I’ve never encountered this error until today. I am using sapphire\_devnet.

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**Author:** ![vjgee](https://avatars.discourse-cdn.com/v4/letter/v/b5e925/32.png) [@vjgee](https://builder.metamask.io/u/vjgee)\
**Post date:** [November 18, 2023, 2:59am UTC](https://builder.metamask.io/t/archive-second-consistency-check-failed-error/1692/2 "2023-11-18T02:59:22Z")

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@jg1 Thanks for your recent post.

Your issue has been forwarded to our team and we will get back to you with further updates.