From 0fb084b9e402fbc93f4664904f87d69651611bc9 Mon Sep 17 00:00:00 2001
From: Waleed <walif6@gmail.com>
Date: Sat, 13 Dec 2025 17:38:59 -0800
Subject: [PATCH] fix(subflows): prevent cross-boundary connections on
 autoconnect drop between subflow blocks and regular blocks (#2366)

---
 .../app/workspace/[workspaceId]/w/[workflowId]/workflow.tsx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/workflow.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/workflow.tsx
index de70d6b67e..c28ff8dc27 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/workflow.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/workflow.tsx
@@ -579,8 +579,10 @@ const WorkflowContent = React.memo(() => {
           const node = nodeIndex.get(id)
           if (!node) return false
 
-          // If dropping outside containers, ignore blocks that are inside a container
-          if (!containerAtPoint && blocks[id]?.data?.parentId) return false
+          const blockParentId = blocks[id]?.data?.parentId
+          const dropParentId = containerAtPoint?.loopId
+          if (dropParentId !== blockParentId) return false
+
           return true
         })
         .map(([id, block]) => {