From b867fa154e3295da84b21f9715498aeda71b0008 Mon Sep 17 00:00:00 2001
From: Sebastian Bor <Sebastian_Bor@hotmail.com>
Date: Wed, 21 Jul 2021 17:52:57 +0100
Subject: [PATCH] Explorer: Initialise instruction logs for single line system
 log (#18777)

---
 explorer/src/pages/inspector/SimulatorCard.tsx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/explorer/src/pages/inspector/SimulatorCard.tsx b/explorer/src/pages/inspector/SimulatorCard.tsx
index 18021305d5..c55194dad3 100644
--- a/explorer/src/pages/inspector/SimulatorCard.tsx
+++ b/explorer/src/pages/inspector/SimulatorCard.tsx
@@ -230,6 +230,13 @@ function useSimulator(message: Message) {
               }
               depth--;
             } else {
+              if (depth === 0) {
+                instructionLogs.push({
+                  logs: [],
+                  failed: false,
+                });
+                depth++;
+              }
               // system transactions don't start with "Program log:"
               instructionLogs[instructionLogs.length - 1].logs.push({
                 prefix: prefixBuilder(depth),