diff --git a/project/src/helpers/InRaidHelper.ts b/project/src/helpers/InRaidHelper.ts
index 5ddf1875..659e02a7 100644
--- a/project/src/helpers/InRaidHelper.ts
+++ b/project/src/helpers/InRaidHelper.ts
@@ -61,7 +61,7 @@ export class InRaidHelper {
         isSurvived: boolean,
         isTransfer: boolean,
     ): void {
-        // Store insurance (as removeItem() removes insurance also)
+        // Store insurance (as removeItem() removes insured items)
         const insured = this.cloner.clone(serverProfile.InsuredItems);
 
         // Remove possible equipped items from before the raid
@@ -69,46 +69,50 @@ export class InRaidHelper {
         this.inventoryHelper.removeItem(serverProfile, serverProfile.Inventory.questRaidItems, sessionID);
         this.inventoryHelper.removeItem(serverProfile, serverProfile.Inventory.sortingTable, sessionID);
 
-        // Handle Removing of FIR status if did not survive.
+        // Get all items that have a parent of `serverProfile.Inventory.equipment` (All items player had on them at end of raid)
+        const postRaidInventoryItems = this.itemHelper.findAndReturnChildrenAsItems(
+            postRaidProfile.Inventory.items,
+            postRaidProfile.Inventory.equipment,
+        );
+
+        // Handle Removing of FIR status if player did not survive + not transferring
+        // Do after above filtering code to reduce work done
         if (!isSurvived && !isTransfer && !this.inRaidConfig.alwaysKeepFoundInRaidonRaidEnd) {
-            this.removeSpawnedInSessionPropertyFromItems(postRaidProfile);
+            const dbItems = this.databaseService.getItems();
+
+            const itemsToRemovePropertyFrom = postRaidProfile.Inventory.items.filter((item) => {
+                // Has upd object + upd.SpawnedInSession property + not a quest item
+                return (
+                    item.upd?.SpawnedInSession &&
+                    !dbItems[item._tpl]._props.QuestItem &&
+                    !(
+                        this.inRaidConfig.keepFiRSecureContainerOnDeath &&
+                        this.itemHelper.itemIsInsideContainer(item, "SecuredContainer", postRaidProfile.Inventory.items)
+                    )
+                );
+            });
+
+            this.itemHelper.removeSpawnedInSessionPropertyFromItems(itemsToRemovePropertyFrom);
+        }
+
+        for (const item of postRaidInventoryItems) {
+            // Try to find index of item to determine if we should add or replace
+            const existingItemIndex = serverProfile.Inventory.items.findIndex(
+                (inventoryItem) => inventoryItem._id === item._id,
+            );
+            if (existingItemIndex === -1) {
+                // Not found, add
+                serverProfile.Inventory.items.push(item);
+            } else {
+                // Replace item with one from client
+                postRaidProfile.Inventory.items.splice(existingItemIndex, 1, item);
+            }
         }
 
-        // Add the new items
-        serverProfile.Inventory.items = [...postRaidProfile.Inventory.items, ...serverProfile.Inventory.items];
         serverProfile.Inventory.fastPanel = postRaidProfile.Inventory.fastPanel; // Quick access items bar
         serverProfile.InsuredItems = insured;
     }
 
-    /**
-     * Iterate over inventory items and remove the property that defines an item as Found in Raid
-     * Only removes property if item had FiR when entering raid
-     * @param postRaidProfile profile to update items for
-     * @returns Updated profile with SpawnedInSession removed
-     */
-    public removeSpawnedInSessionPropertyFromItems(postRaidProfile: IPmcData): IPmcData {
-        const dbItems = this.databaseService.getItems();
-        const itemsToRemovePropertyFrom = postRaidProfile.Inventory.items.filter((item) => {
-            // Has upd object + upd.SpawnedInSession property + not a quest item
-            return (
-                "upd" in item &&
-                "SpawnedInSession" in item.upd &&
-                !dbItems[item._tpl]._props.QuestItem &&
-                !(
-                    this.inRaidConfig.keepFiRSecureContainerOnDeath &&
-                    this.itemHelper.itemIsInsideContainer(item, "SecuredContainer", postRaidProfile.Inventory.items)
-                )
-            );
-        });
-
-        for (const item of itemsToRemovePropertyFrom) {
-            // biome-ignore lint/performance/noDelete: <explanation>
-            delete item.upd.SpawnedInSession;
-        }
-
-        return postRaidProfile;
-    }
-
     /**
      * Clear PMC inventory of all items except those that are exempt
      * Used post-raid to remove items after death
diff --git a/project/src/helpers/InventoryHelper.ts b/project/src/helpers/InventoryHelper.ts
index 329079e3..e8c5fb7f 100644
--- a/project/src/helpers/InventoryHelper.ts
+++ b/project/src/helpers/InventoryHelper.ts
@@ -450,33 +450,43 @@ export class InventoryHelper {
         }
 
         // Get children of item, they get deleted too
-        const itemToRemoveWithChildren = this.itemHelper.findAndReturnChildrenByItems(profile.Inventory.items, itemId);
+        const itemAndChildrenToRemove = this.itemHelper.findAndReturnChildrenAsItems(profile.Inventory.items, itemId);
+        if (itemAndChildrenToRemove.length === 0) {
+            this.logger.debug(
+                this.localisationService.getText("inventory-unable_to_remove_item_id_not_found", {
+                    childId: itemId,
+                    profileId: profile._id,
+                }),
+            );
+
+            return;
+        }
         const inventoryItems = profile.Inventory.items;
         const insuredItems = profile.InsuredItems;
 
-        // We have output object, inform client of item deletion
+        // We have output object, inform client of root item deletion, not children
         if (output) {
             output.profileChanges[sessionID].items.del.push({ _id: itemId });
         }
 
-        for (const childId of itemToRemoveWithChildren) {
+        for (const item of itemAndChildrenToRemove) {
             // We expect that each inventory item and each insured item has unique "_id", respective "itemId".
             // Therefore we want to use a NON-Greedy function and escape the iteration as soon as we find requested item.
-            const inventoryIndex = inventoryItems.findIndex((item) => item._id === childId);
+            const inventoryIndex = inventoryItems.findIndex((inventoryItem) => inventoryItem._id === item._id);
             if (inventoryIndex !== -1) {
                 inventoryItems.splice(inventoryIndex, 1);
             } else {
                 this.logger.warning(
                     this.localisationService.getText("inventory-unable_to_remove_item_id_not_found", {
-                        childId: childId,
+                        childId: item._id,
                         profileId: profile._id,
                     }),
                 );
             }
 
-            const insuredIndex = insuredItems.findIndex((item) => item.itemId === childId);
-            if (insuredIndex !== -1) {
-                insuredItems.splice(insuredIndex, 1);
+            const insuredItemIndex = insuredItems.findIndex((insuredItem) => insuredItem.itemId === item._id);
+            if (insuredItemIndex !== -1) {
+                insuredItems.splice(insuredItemIndex, 1);
             }
         }
     }
diff --git a/project/src/helpers/ItemHelper.ts b/project/src/helpers/ItemHelper.ts
index 528b3ee6..b9f82f37 100644
--- a/project/src/helpers/ItemHelper.ts
+++ b/project/src/helpers/ItemHelper.ts
@@ -1794,6 +1794,16 @@ export class ItemHelper {
             currentItem = this.getItem(tpl)[1];
         }
     }
+
+    /**
+     * Remove FiR status from passed in items
+     * @param items Items to update FiR status of
+     */
+    public removeSpawnedInSessionPropertyFromItems(items: IItem[]): void {
+        for (const item of items) {
+            delete item.upd.SpawnedInSession;
+        }
+    }
 }
 
 namespace ItemHelper {