From 289aa0c4fd3c8efb3ae4f0a931e4740b689b7149 Mon Sep 17 00:00:00 2001 From: juanmigdr Date: Thu, 16 Jul 2026 14:33:00 +0200 Subject: [PATCH 1/3] fix: network enablement imparity --- .../src/NetworkEnablementController.ts | 1 - 1 file changed, 1 deletion(-) diff --git a/packages/network-enablement-controller/src/NetworkEnablementController.ts b/packages/network-enablement-controller/src/NetworkEnablementController.ts index 844955887c..bc88b90150 100644 --- a/packages/network-enablement-controller/src/NetworkEnablementController.ts +++ b/packages/network-enablement-controller/src/NetworkEnablementController.ts @@ -166,7 +166,6 @@ const getDefaultNetworkEnablementControllerState = [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: { From a7e9882473c836cc5fdebaf9fb69a7e2c6d8e67a Mon Sep 17 00:00:00 2001 From: juanmigdr Date: Thu, 16 Jul 2026 16:12:44 +0200 Subject: [PATCH 2/3] chore: update changelog --- packages/network-enablement-controller/CHANGELOG.md | 4 ++++ .../src/NetworkEnablementController.ts | 3 +++ 2 files changed, 7 insertions(+) diff --git a/packages/network-enablement-controller/CHANGELOG.md b/packages/network-enablement-controller/CHANGELOG.md index 1da86595dc..be56e6dfe1 100644 --- a/packages/network-enablement-controller/CHANGELOG.md +++ b/packages/network-enablement-controller/CHANGELOG.md @@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +### Fixed + +- Remove Sei Mainnet (`0x531`) from the default-enabled EVM network map, fixing a crash in consumers that call `findNetworkClientIdByChainId` for chains with no built-in `NetworkController` client ([#9542](https://github.com/MetaMask/core/pull/9542)) + ## [5.6.0] ### Added diff --git a/packages/network-enablement-controller/src/NetworkEnablementController.ts b/packages/network-enablement-controller/src/NetworkEnablementController.ts index bc88b90150..9aa833d015 100644 --- a/packages/network-enablement-controller/src/NetworkEnablementController.ts +++ b/packages/network-enablement-controller/src/NetworkEnablementController.ts @@ -158,6 +158,9 @@ export type NetworkConfig = { const getDefaultNetworkEnablementControllerState = (): NetworkEnablementControllerState => ({ enabledNetworkMap: { + // Each chain ID here must have a built-in client in NetworkController + // (see DEFAULT_INFURA_NETWORKS). A missing client causes + // findNetworkClientIdByChainId to throw silently in consumers. [KnownCaipNamespace.Eip155]: { [ChainId[BuiltInNetworkName.Mainnet]]: true, [ChainId[BuiltInNetworkName.LineaMainnet]]: true, From f0777bbafd6d5a4867006969bd28af2ac0a488a4 Mon Sep 17 00:00:00 2001 From: juanmigdr Date: Thu, 16 Jul 2026 16:49:38 +0200 Subject: [PATCH 3/3] fix: failing tests --- .../src/NetworkEnablementController.test.ts | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/packages/network-enablement-controller/src/NetworkEnablementController.test.ts b/packages/network-enablement-controller/src/NetworkEnablementController.test.ts index 410e68a089..07e23531db 100644 --- a/packages/network-enablement-controller/src/NetworkEnablementController.test.ts +++ b/packages/network-enablement-controller/src/NetworkEnablementController.test.ts @@ -195,7 +195,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: { @@ -255,7 +254,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, '0xa86a': true, // Avalanche network added and enabled (keeps current selection) }, @@ -324,7 +322,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: { @@ -433,7 +430,6 @@ describe('NetworkEnablementController', () => { controller.disableNetwork('0x38'); // BSC Mainnet controller.disableNetwork('0xa'); // Optimism Mainnet controller.disableNetwork('0x89'); // Polygon Mainnet - controller.disableNetwork('0x531'); // Sei Mainnet controller.disableNetwork('0x8f'); // Monad Mainnet // Publish an update with linea network removed @@ -471,7 +467,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -576,7 +571,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: { @@ -1227,7 +1221,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: { @@ -1266,7 +1259,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, // Not in mocked config [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, // Not in mocked config [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, // Not in mocked config - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, // Not in mocked config [ChainId[BuiltInNetworkName.MonadMainnet]]: false, // Not in mocked config }, [KnownCaipNamespace.Solana]: { @@ -1538,7 +1530,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: { @@ -1577,7 +1568,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -1636,7 +1626,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -1679,7 +1668,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -1722,7 +1710,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -1776,7 +1763,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -1827,7 +1813,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -1881,7 +1866,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: false, [ChainId[BuiltInNetworkName.OptimismMainnet]]: false, [ChainId[BuiltInNetworkName.PolygonMainnet]]: false, - [ChainId[BuiltInNetworkName.SeiMainnet]]: false, [ChainId[BuiltInNetworkName.MonadMainnet]]: false, }, [KnownCaipNamespace.Solana]: { @@ -1932,7 +1916,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: { @@ -1985,7 +1968,6 @@ describe('NetworkEnablementController', () => { [ChainId[BuiltInNetworkName.BscMainnet]]: true, [ChainId[BuiltInNetworkName.OptimismMainnet]]: true, [ChainId[BuiltInNetworkName.PolygonMainnet]]: true, - [ChainId[BuiltInNetworkName.SeiMainnet]]: true, [ChainId[BuiltInNetworkName.MonadMainnet]]: true, }, [KnownCaipNamespace.Solana]: {