diff --git a/difftest/offline/src/json_events.rs b/difftest/offline/src/json_events.rs
index b0047e2a2..bf298ebdc 100644
--- a/difftest/offline/src/json_events.rs
+++ b/difftest/offline/src/json_events.rs
@@ -314,6 +314,10 @@ impl JsonEventRunner for SpikeRunner {
     let issue_idx = report.issue_idx;
     let cycle = report.cycle;
 
+    if count == 0 {
+      return Ok(());
+    }
+
     let mut should_retire: Option<u8> = None;
 
     if let Some(se) = self.commit_queue.iter_mut().rev().find(|se| se.issue_idx == issue_idx) {