From 567fa62b7d084f8aa6af5e62244d3893467581c3 Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Wed, 15 Apr 2026 15:02:14 +0200
Subject: [PATCH] Add null check for activeEntityPreview in viewport-host.ts

---
 src/viewport-three/viewport-host.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/viewport-three/viewport-host.ts b/src/viewport-three/viewport-host.ts
index b247c098..cee7fcd7 100644
--- a/src/viewport-three/viewport-host.ts
+++ b/src/viewport-three/viewport-host.ts
@@ -1546,7 +1546,11 @@ export class ViewportHost {
           (item) => item.entityId === session.target.activeEntityId
         );
 
-        switch (activeEntityPreview?.rotation.kind) {
+        if (activeEntityPreview === undefined) {
+          return null;
+        }
+
+        switch (activeEntityPreview.rotation.kind) {
           case "yaw":
             return this.createRotationQuaternion({
               x: 0,