diff --git a/.github/actions/dependencies/action.yml b/.github/actions/dependencies/action.yml
index c5c6a59ab9..7ece9710a8 100644
--- a/.github/actions/dependencies/action.yml
+++ b/.github/actions/dependencies/action.yml
@@ -43,7 +43,7 @@ runs:
         cd ${build_dir}
         conan install \
           --output-folder . \
-          --build '*' \
+          --build missing \
           --options:host "&:tests=True" \
           --options:host "&:xrpld=True" \
           --settings:all build_type=${{ inputs.configuration }} \
diff --git a/docs/build/environment.md b/docs/build/environment.md
index 760be144d8..40a80d4b25 100644
--- a/docs/build/environment.md
+++ b/docs/build/environment.md
@@ -53,6 +53,34 @@ minimum required (see [BUILD.md][]).
 clang --version
 ```
 
+### Install Xcode Specific Version (Optional)
+
+If you develop other applications using XCode you might be consistently updating to the newest version of Apple Clang. 
+This will likely cause issues building rippled. You may want to install a specific version of Xcode:
+
+1. **Download Xcode**
+
+   - Visit [Apple Developer Downloads](https://developer.apple.com/download/more/)
+   - Sign in with your Apple Developer account
+   - Search for an Xcode version that includes **Apple Clang (Expected Version)**
+   - Download the `.xip` file
+
+2. **Install and Configure Xcode**
+
+   ```bash
+   # Extract the .xip file and rename for version management
+   # Example: Xcode_16.2.app
+
+   # Move to Applications directory
+   sudo mv Xcode_16.2.app /Applications/
+
+   # Set as default toolchain (persistent)
+   sudo xcode-select -s /Applications/Xcode_16.2.app/Contents/Developer
+
+   # Set as environment variable (temporary)
+   export DEVELOPER_DIR=/Applications/Xcode_16.2.app/Contents/Developer
+   ```
+
 The command line developer tools should include Git too:
 
 ```
diff --git a/src/xrpld/overlay/detail/OverlayImpl.cpp b/src/xrpld/overlay/detail/OverlayImpl.cpp
index 79dba77ee7..646d3edc2d 100644
--- a/src/xrpld/overlay/detail/OverlayImpl.cpp
+++ b/src/xrpld/overlay/detail/OverlayImpl.cpp
@@ -1443,9 +1443,10 @@ OverlayImpl::updateSlotAndSquelch(
     if (!strand_.running_in_this_thread())
         return post(
             strand_,
+            // Must capture copies of reference parameters (i.e. key, validator)
             [this,
-             key,
-             validator,
+             key = key,
+             validator = validator,
              peers = std::move(peers),
              isTrusted]() mutable {
                 updateSlotAndSquelch(
@@ -1472,9 +1473,12 @@ OverlayImpl::updateSlotAndSquelch(
         return;
 
     if (!strand_.running_in_this_thread())
-        return post(strand_, [this, key, validator, peer, isTrusted]() {
-            updateSlotAndSquelch(key, validator, peer, isTrusted);
-        });
+        return post(
+            strand_,
+            // Must capture copies of reference parameters (i.e. key, validator)
+            [this, key = key, validator = validator, peer, isTrusted]() {
+                updateSlotAndSquelch(key, validator, peer, isTrusted);
+            });
 
     slots_.updateSlotAndSquelch(
         key,
diff --git a/src/xrpld/overlay/detail/Slot.cpp b/src/xrpld/overlay/detail/Slot.cpp
index e6878cf594..2f1b523a79 100644
--- a/src/xrpld/overlay/detail/Slot.cpp
+++ b/src/xrpld/overlay/detail/Slot.cpp
@@ -35,6 +35,7 @@
 #include <optional>
 #include <sstream>
 #include <string>
+#include <vector>
 
 namespace ripple {
 namespace reduce_relay {
@@ -233,6 +234,7 @@ Slot::deletePeer(PublicKey const& validator, Peer::id_t id, bool erase)
     if (it == peers_.end())
         return;
 
+    std::vector<Peer::id_t> toUnsquelch;
     auto const now = clock_.now();
     if (it->second.state == PeerState::Selected)
     {
@@ -246,7 +248,7 @@ Slot::deletePeer(PublicKey const& validator, Peer::id_t id, bool erase)
         for (auto& [k, v] : peers_)
         {
             if (v.state == PeerState::Squelched)
-                handler_.unsquelch(validator, k);
+                toUnsquelch.push_back(k);
             v.state = PeerState::Counting;
             v.count = 0;
             v.expire = now;
@@ -256,7 +258,7 @@ Slot::deletePeer(PublicKey const& validator, Peer::id_t id, bool erase)
         reachedThreshold_ = 0;
         state_ = SlotState::Counting;
     }
-    else if (considered_.find(id) != considered_.end())
+    else if (considered_.contains(id))
     {
         if (it->second.count > reduce_relay::MAX_MESSAGE_THRESHOLD)
             --reachedThreshold_;
@@ -268,6 +270,10 @@ Slot::deletePeer(PublicKey const& validator, Peer::id_t id, bool erase)
 
     if (erase)
         peers_.erase(it);
+    
+    // Must be after peers_.erase(it)
+    for (auto const& k : toUnsquelch)
+        handler_.unsquelch(validator, k);
 }
 
 void