diff --git a/src/client/common/utils/async.ts b/src/client/common/utils/async.ts
index 29bf4a8d6fca..5905399cd4a1 100644
--- a/src/client/common/utils/async.ts
+++ b/src/client/common/utils/async.ts
@@ -50,11 +50,17 @@ class DeferredImpl<T> implements Deferred<T> {
     }
 
     public resolve(_value: T | PromiseLike<T>) {
+        if (this.completed) {
+            return;
+        }
         this._resolve.apply(this.scope ? this.scope : this, [_value]);
         this._resolved = true;
     }
 
     public reject(_reason?: string | Error | Record<string, unknown>) {
+        if (this.completed) {
+            return;
+        }
         this._reject.apply(this.scope ? this.scope : this, [_reason]);
         this._rejected = true;
     }