From a6a8854598b6122946e4794bede7ef43b386743a Mon Sep 17 00:00:00 2001
From: Tien Nguyen <tien@notional.ventures>
Date: Thu, 18 Jan 2024 02:29:01 +0700
Subject: [PATCH] fix: Add check len msgs when process proposal (#1437)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Bug Fixes**
- Improved transaction message processing by ensuring at exactly one
message is present before unwrapping the payload.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---
 cosmos/runtime/chain/abci.go | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/cosmos/runtime/chain/abci.go b/cosmos/runtime/chain/abci.go
index dcc69eb6a..c83cfe996 100644
--- a/cosmos/runtime/chain/abci.go
+++ b/cosmos/runtime/chain/abci.go
@@ -51,10 +51,12 @@ func (wbc *WrappedBlockchain) ProcessProposal(
 			continue
 		}
 
-		protoEnvelope := sdkTx.GetMsgs()[0]
-		if env, ok := protoEnvelope.(*evmtypes.WrappedPayloadEnvelope); ok {
-			envelope = env.UnwrapPayload()
-			break
+		if len(sdkTx.GetMsgs()) == 1 {
+			protoEnvelope := sdkTx.GetMsgs()[0]
+			if env, ok := protoEnvelope.(*evmtypes.WrappedPayloadEnvelope); ok {
+				envelope = env.UnwrapPayload()
+				break
+			}
 		}
 	}