diff --git a/CHANGELOG.md b/CHANGELOG.md
index d40ea9c8b2..6d3c2afd5f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 ### Bug fixes
 
 * [#1918](https://github.com/crypto-org-chain/cronos/pull/1918) Chore: cleanup and improve x/mint params validation and test in cosmos-sdk
+* [#1923](https://github.com/crypto-org-chain/cronos/pull/1911) Fix: LastBlockList should be set at the end
 
 *Nov 30, 2025*
 
diff --git a/app/app.go b/app/app.go
index c5387bbacf..379abbd1ba 100644
--- a/app/app.go
+++ b/app/app.go
@@ -1157,6 +1157,7 @@ func (app *App) EndBlocker(ctx sdk.Context) (sdk.EndBlock, error) {
 	rsp, err := app.ModuleManager.EndBlock(ctx)
 	if err := app.RefreshBlockList(ctx); err != nil {
 		app.Logger().Error("failed to update blocklist", "error", err)
+		return rsp, err
 	}
 	return rsp, err
 }
diff --git a/app/proposal.go b/app/proposal.go
index d2dce5a32d..c0012a0cb3 100644
--- a/app/proposal.go
+++ b/app/proposal.go
@@ -101,8 +101,6 @@ func (h *ProposalHandler) SetBlockList(blob []byte) error {
 	if bytes.Equal(h.lastBlockList, blob) {
 		return nil
 	}
-	h.lastBlockList = make([]byte, len(blob))
-	copy(h.lastBlockList, blob)
 
 	if len(blob) == 0 {
 		h.blocklist = make(map[string]struct{})
@@ -139,6 +137,9 @@ func (h *ProposalHandler) SetBlockList(blob []byte) error {
 	}
 
 	h.blocklist = m
+	h.lastBlockList = make([]byte, len(blob))
+	copy(h.lastBlockList, blob)
+
 	return nil
 }