Game Error Fortnite

Blitz Collab Weapon Malfunctions - Fortnite Fix Guide

📅 Published: 2026-02-05 🔄 Updated: 2026-02-05 👥 Reports: 7 ⚡ Severity: 🟢 Low

🎯 Quick Answer

Clear the game's local cache and verify game files to resolve Scorpion's Spear and Sub-Zero's Gloves ability malfunctions in Fortnite.

SECTION 1: OVERVIEW

This error refers to the malfunction of specific ability functions on Blitz collaboration Mythic weapons in Fortnite Battle Royale. The primary technical failures are the inconsistent activation of Scorpion's Spear (Kunai) pull ability and the animation lock or "freeze" state during Sub-Zero's Gloves (Kori Knuckles) dash ability. The problem occurs across all supported platforms, including Windows (via Epic Games Launcher), PlayStation 4, PlayStation 5, Xbox One, Xbox Series X|S, and Nintendo Switch. This issue manifests in the v29.40 build and subsequent updates containing the Blitz collaboration content. The frequency classification is common, based on reproducible failure rates in live gameplay. The severity impact is game-breaking for affected matches, as core weapon functionality becomes unreliable or results in a character control lock. No formal error codes are generated; the failure is purely behavioral within the game client.

SECTION 2: SYMPTOMS

The application fails to execute the intended weapon ability mechanics. For Scorpion's Spear, the secondary fire (aim-down-sights + fire) command initiates the Kunai throw animation and projectile, but the subsequent pull function does not trigger, leaving the target enemy unaffected. For Sub-Zero's Gloves, activating the dash ability (secondary fire) causes the character model to enter an animation state that overrides player movement input for the ability's duration, effectively freezing positional translation. The ability cooldown timer initiates normally. These symptoms occur exclusively during gameplay when the specific Mythic items are equipped and their alternate fire modes are engaged. The visual and audio cues for the initial ability cast play, but the concluding mechanical effect is absent or results in a control lock.

SECTION 3: COMMON CAUSES

Category: Game Bug - Local Asset Corruption. Corrupted or outdated local game asset files prevent proper script execution for the weapon's ability sequence, causing the chain to break.
Category: Configuration Error - Cached Network Data Conflict. Stale or corrupted locally cached network data related to item definitions interferes with server-authoritative ability validation.
Category: Software Conflict - Overlay Application Interference. Third-party overlay software (Discord, Xbox Game Bar, NVIDIA GeForce Experience) hooks into the game process and can interrupt specific input or animation frames.
Category: Network Problem - High Latency/Packet Loss. Client-server desynchronization during the ability's activation window causes the server to reject or fail to process the secondary effect command.
Category: Game Bug - Animation State Machine Lock. A logic error in the character animation state machine fails to release control back to the player after the ability animation concludes.
Category: Configuration Error - User Settings File Corruption. A damaged GameUserSettings.ini file contains invalid bindings or performance settings that disrupt ability input parsing.

SECTION 4: SOLUTIONS

Solution 1: Clear Fortnite Local Cache

Difficulty: Easy Time Required: 5 minutes Success Rate: High Prerequisites: None Steps:

Completely exit the Fortnite client and the Epic Games Launcher. Verify closure via Task Manager (Windows).
Press Windows Key + R, type %localappdata%, and press Enter to open the Local AppData folder.
Navigate to the FortniteGame folder, then the Saved subfolder.
Locate and delete the following folders: Config, Crashes, Logs, and SaveCloud.
Reopen the Epic Games Launcher, launch Fortnite, and allow the game to regenerate fresh configuration files.

Technical Explanation: This removes corrupted local configuration and cached network data that can conflict with the live game server's item behavior definitions, forcing a clean sync. Verification: Launch a non-competitive game mode (e.g., Team Rumble) and test the Blitz weapon abilities. The pull and dash mechanics should execute their full sequence without interruption.

Solution 2: Verify Game Files via Epic Games Launcher

Difficulty: Easy Time Required: 10-20 minutes Success Rate: High Prerequisites: Active internet connection Steps:

Open the Epic Games Launcher and navigate to your Library.
Locate Fortnite and click the three dots (...) below the game title.
Select Manage from the dropdown menu.
Click the Verify button. The launcher will scan and repair any missing or corrupted game files.
Allow the process to complete (progress bar indicated), then launch the game.

Technical Explanation: The verification tool compares local file checksums against the official Epic Games server manifest and downloads replacements for any mismatched files, ensuring core asset integrity. Verification: After the verification completes, the launcher will display a confirmation. In-game, the weapon ability scripts should load and execute from validated assets.

Solution 3: Update Graphics and Network Drivers

Difficulty: Medium Time Required: 15 minutes Success Rate: Medium Prerequisites: Administrator access Steps:

Identify your GPU model: Press Windows Key + R, type dxdiag, press Enter, and navigate to the Display tab.
Download the latest WHQL-certified driver from the manufacturer's site (NVIDIA, AMD, or Intel).
Perform a custom installation and select the "Perform clean installation" option.
For network drivers, identify your network adapter in Device Manager (devmgmt.msc) under Network adapters.
Right-click the adapter, select Update driver, and choose Search automatically for updated driver software.

Technical Explanation: Outdated GPU drivers can cause rendering pipeline stalls that lock animation states, while faulty network drivers contribute to packet loss that breaks ability synchronization. Verification: Check driver versions in Device Manager. Test gameplay with the updated drivers; animation fluidity and network reliability should improve.

Solution 4: Disable Third-Party Overlays and Performance Software

Difficulty: Easy Time Required: 5 minutes Success Rate: Medium Prerequisites: None Steps:

Open Discord settings (User Settings > Overlay) and disable Enable in-game overlay.
Press Windows Key + G to open Xbox Game Bar settings, go to General, and disable all features.
Open NVIDIA GeForce Experience (if applicable), click the Settings cog, and toggle off In-Game Overlay.
Close any other performance monitoring tools (MSI Afterburner, RivaTuner Statistics Server) before launching Fortnite.

Technical Explanation: Overlays inject code into the game's process, which can intercept DirectX calls and cause frame timing issues, interrupting finely-timed ability animations. Verification: Launch Fortnite with all overlays disabled. The ability activation sequence should proceed without external software interruption.

Solution 5: Adjust Network QoS and Port Configuration

Difficulty: Advanced Time Required: 20 minutes Success Rate: Medium Prerequisites: Router admin access Steps:

Access your router's admin interface (typically 192.168.1.1 or 192.168.0.1 in a web browser).
Locate Quality of Service (QoS) settings. Enable QoS and prioritize traffic for your gaming device's IP address.
Navigate to Port Forwarding. Add rules to forward the following UDP ports to your gaming device's local IP: 5222, 5795, 7777, 7787, 8700-8800, 20500-20510.
Save settings and reboot the router. On your PC, open Command Prompt as Administrator and execute: netsh int ip reset and netsh winsock reset. Restart the computer.

Technical Explanation: This minimizes network jitter and ensures Fortnite's specific voice, gameplay, and party service ports have unimpeded communication, reducing desynchronization. Verification: Test in-game with a network statistics overlay enabled. Observe reduced ping variance and zero packet loss during ability use.

Solution 6: Create a Fresh Game User Settings Configuration

Difficulty: Medium Time Required: 10 minutes Prerequisites: None Steps:

Exit Fortnite and the Epic Games Launcher fully.
Navigate to %localappdata%\FortniteGame\Saved\Config\WindowsClient.
Rename the file GameUserSettings.ini to GameUserSettings.ini.old.
Launch the Epic Games Launcher and start Fortnite. The game will generate a new default settings file.
Reconfigure your video, audio, and input settings within the game's menu. Avoid restoring from cloud backup for this session.

Technical Explanation: A corrupted .ini file may contain invalid script references or input bindings that conflict with the new weapon mechanics. A fresh file ensures default, stable parameters. Verification: The game will launch with default settings. After reconfiguring, test the weapons; input parsing for abilities should function correctly.

SECTION 5: PREVENTION

Maintain system software integrity to prevent recurrence. Establish a monthly schedule to update GPU drivers using the manufacturer's clean installation option. Verify Fortnite game files through the Epic Games Launcher after every major game update. Configure your router to automatically reboot on a weekly schedule during off-hours to clear its memory cache. Monitor in-game network statistics (enable in HUD settings) for packet loss spikes during gameplay, which indicate an emerging connectivity issue. Avoid modifying core game .ini files with unofficial performance tweaks that can destabilize script execution.

SECTION 6: WHEN TO CONTACT SUPPORT

Contact Epic Games Support only after exhaustively testing all solutions in this guide and confirming the issue persists across multiple game sessions. Required diagnostic information includes the full output of the Epic Games Launcher diagnostic tool (Help > Diagnostics) and specific match IDs where the malfunction occurred. Provide your full system specifications or console model. Official support channels are accessible via the Epic Games Help Center at epicgames.com/help. Do not submit reports based on isolated incidents; ensure the bug is reproducible.