diff --git a/packages/behavior/item/actions.js b/packages/behavior/item/actions.js
index c1e4c38..e523373 100644
--- a/packages/behavior/item/actions.js
+++ b/packages/behavior/item/actions.js
@@ -36,12 +36,13 @@ export class Actions extends decorate(Traversals) {
       this.emitFinished();
       return;
     }
-    if (
-      this.pending
-      && this.pending instanceof TickingPromise
-      && 'function' === typeof this.pending.ticker
-    ) {
-      this.pending.ticker(elapsed);
+    if (this.pending) {
+      if (
+        this.pending instanceof TickingPromise
+        && 'function' === typeof this.pending.ticker
+      ) {
+        this.pending.ticker(elapsed);
+      }
       return;
     }
 
@@ -50,9 +51,12 @@ export class Actions extends decorate(Traversals) {
     while (true) {
       const result = this.traversals[this.index].traverse(context);
       if (result instanceof Promise) {
-        result.then(() => this.prologue());
+        result.then(() => {
+          this.prologue();
+        });
         result.catch((error) => {
-          throw error;
+          console.error(error);
+          this.prologue();
         });
         this.pending = result;
         break;