diff --git a/shared/pubUtils/util.ts b/shared/pubUtils/util.ts
index 9869fc3a3..5beaa41f6 100644
--- a/shared/pubUtils/util.ts
+++ b/shared/pubUtils/util.ts
@@ -226,8 +226,8 @@ export function getRandEelmWithWeight<T extends { weight: number }>(randomList:
  * @param source 
  */
 export function sortArrRandom<T>(source: T[] = []): T[] {
-    let arr: T[] = deepCopy(source);
-    return arr.sort(() => { return Math.random() - 0.5; });
+    let newArr: T[] = [...source];
+    return newArr.sort(() => { return Math.random() - 0.5; });
 }
 
 /**