From 82ad70588c0f8a194ac3f34bb98c585ddf56f76b Mon Sep 17 00:00:00 2001
From: braks <78412429+bcakmakoglu@users.noreply.github.com>
Date: Tue, 25 Jul 2023 10:36:37 +0200
Subject: [PATCH 1/2] fix(core): check if viewport is defined before setting

---
 packages/core/src/store/actions.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/packages/core/src/store/actions.ts b/packages/core/src/store/actions.ts
index a6c6dfaf8..040eb4005 100644
--- a/packages/core/src/store/actions.ts
+++ b/packages/core/src/store/actions.ts
@@ -844,14 +844,18 @@ export function useActions(
       setEdges(edges)
     }
 
-    if (viewport || position) {
+    if ((viewport?.x && viewport?.y) || position) {
+      const x = viewport?.x || position[0]
+      const y = viewport?.y || position[1]
+      const nextZoom = viewport?.zoom || zoom || state.viewport.zoom
+
       until(() => viewportHelper.value.initialized)
         .toBe(true)
         .then(() => {
           viewportHelper.value.setViewport({
-            x: viewport.x || position[0],
-            y: viewport.y || position[1],
-            zoom: viewport.zoom || zoom || state.viewport.zoom,
+            x,
+            y,
+            zoom: nextZoom,
           })
         })
     }

From 43c6a4cfb4c6058ba5427445571e9cc45ceb72db Mon Sep 17 00:00:00 2001
From: braks <78412429+bcakmakoglu@users.noreply.github.com>
Date: Tue, 25 Jul 2023 10:37:17 +0200
Subject: [PATCH 2/2] chore(changeset): add

---
 .changeset/light-pets-bake.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/light-pets-bake.md

diff --git a/.changeset/light-pets-bake.md b/.changeset/light-pets-bake.md
new file mode 100644
index 000000000..d03dd7d70
--- /dev/null
+++ b/.changeset/light-pets-bake.md
@@ -0,0 +1,5 @@
+---
+"@vue-flow/core": patch
+---
+
+Check if viewport transform is defined before setting in `fromObj` action