diff --git a/submodules/InstantPageUI/Sources/InstantPageRenderer.swift b/submodules/InstantPageUI/Sources/InstantPageRenderer.swift
index b0400327d5..23d8d00a07 100644
--- a/submodules/InstantPageUI/Sources/InstantPageRenderer.swift
+++ b/submodules/InstantPageUI/Sources/InstantPageRenderer.swift
@@ -1803,6 +1803,13 @@ final class InstantPageV2DetailsView: UIView, InstantPageItemView {
                     self.addSubview(body)
                     self.bodyView = body
                 }
+                // Forward taps on details NESTED inside this body up to the same toggle handler this
+                // view uses: makeItemView wired our onTitleTapped to the owning InstantPageV2View's
+                // detailsTapped, so chaining through onTitleTapped reaches the bubble's toggle handler.
+                // Without this, a nested details' tap hits the body view's nil detailsTapped and is dropped.
+                body.detailsTapped = { [weak self] index in
+                    self?.onTitleTapped?(index)
+                }
                 body.update(layout: innerLayout, theme: theme, animation: animation)
                 body.frame = CGRect(
                     origin: CGPoint(x: 0.0, y: item.titleFrame.maxY),
diff --git a/submodules/TelegramUI/Components/Chat/ChatMessageRichDataBubbleContentNode/Sources/ChatMessageRichDataBubbleContentNode.swift b/submodules/TelegramUI/Components/Chat/ChatMessageRichDataBubbleContentNode/Sources/ChatMessageRichDataBubbleContentNode.swift
index 468f35c942..4a562f581e 100644
--- a/submodules/TelegramUI/Components/Chat/ChatMessageRichDataBubbleContentNode/Sources/ChatMessageRichDataBubbleContentNode.swift
+++ b/submodules/TelegramUI/Components/Chat/ChatMessageRichDataBubbleContentNode/Sources/ChatMessageRichDataBubbleContentNode.swift
@@ -164,12 +164,23 @@ public class ChatMessageRichDataBubbleContentNode: ChatMessageBubbleContentNode
 
     private func defaultExpanded(forDetailsIndex index: Int) -> Bool {
         guard let layout = self.currentPageLayout?.layout else { return false }
-        for item in layout.items {
-            if case let .details(d) = item, d.index == index {
-                return d.defaultExpanded
+        func search(_ items: [InstantPageV2LaidOutItem]) -> Bool? {
+            for item in items {
+                if case let .details(d) = item {
+                    if d.index == index {
+                        return d.defaultExpanded
+                    }
+                    // Recurse into an expanded parent's body so NESTED details indices resolve too;
+                    // the flat top-level scan missed them, leaving the toggle's "current state"
+                    // computation wrong for a nested details whose model default is expanded.
+                    if let inner = d.innerLayout, let found = search(inner.items) {
+                        return found
+                    }
+                }
             }
+            return nil
         }
-        return false
+        return search(layout.items) ?? false
     }
 
     required public init?(coder aDecoder: NSCoder) {