From c87301fbde31219b339c5bce3d24cf27de1af851 Mon Sep 17 00:00:00 2001
From: Jaco <jacogr@gmail.com>
Date: Fri, 25 Mar 2022 16:43:40 +0200
Subject: [PATCH] Proactive checking for empty groups

---
 packages/page-parachains/src/Overview/useValidators.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/page-parachains/src/Overview/useValidators.ts b/packages/page-parachains/src/Overview/useValidators.ts
index 558fdb36a300..249a7c1ae92b 100644
--- a/packages/page-parachains/src/Overview/useValidators.ts
+++ b/packages/page-parachains/src/Overview/useValidators.ts
@@ -30,7 +30,7 @@ function mapValidators (startWith: Record<string, [GroupIndex, ValidatorInfo[]]>
       ...all,
       [id.toString()]: [
         assignment.groupIdx,
-        groups[assignment.groupIdx.toNumber()]
+        (groups[assignment.groupIdx.toNumber()] || [])
           .map((index) => [index, indices[index.toNumber()]])
           .filter(([, a]) => a)
           .map(([indexActive, indexValidator]) => ({