How to Fix Granblue Fantasy: Relink Endless Ragnarok Crash on Launch in Windows 11 (2026 Guide)

The Endless Ragnarok expansion injects a huge amount of fresh content into Granblue Fantasy: Relink. New bosses, expanded multiplayer features, tougher endgame encounters, additional progression systems, and plenty of reasons to return to the Sky Realm make it one of the biggest updates Cygames has released. Unfortunately, for many PC players, the adventure ends before it even begins.

Instead of reaching the title screen, countless players are dealing with launch crashes, endless black screens, instant desktop crashes, or the game refusing to open after pressing Play in Steam. If you’ve been browsing Reddit, Steam discussions, Discord servers, or community forums lately, you’ve probably noticed you’re far from the only one experiencing this.

After spending hours testing different systems, comparing community reports, and experimenting with various Windows configurations, several fixes consistently stand out. Some take less than a minute. Others require a little more work, but they’ve helped a huge number of players finally get past the startup crash.

This guide covers the most reliable solutions currently available for Granblue Fantasy: Relink – Endless Ragnarok on Windows 11, starting with the easiest fixes before moving into advanced troubleshooting.

Why Endless Ragnarok Crashes Before Launch

The expansion isn’t just another content patch.

Under the hood, Endless Ragnarok updates large portions of the engine responsible for rendering, multiplayer synchronization, texture streaming, and CPU scheduling. Those improvements increase performance on many systems—but they also expose compatibility issues with certain hardware and Windows features.

The most common reasons behind startup crashes include:

• Hybrid Intel CPUs struggling with thread scheduling.
• Graphics overlays interfering with DirectX initialization.
• Old graphics configuration files created before the expansion.
• Corrupted GPU drivers after multiple driver upgrades.
• Windows security protections conflicting with executable initialization.
• USB devices and controllers interrupting input detection during startup.

The good news? None of these problems usually indicate damaged game files or failing hardware.

Fix 1 — Force DirectX 12 Through Steam

One of the quickest fixes I’ve personally seen work involves forcing the game to launch directly with DirectX 12.

For whatever reason, some systems fail while negotiating graphics APIs automatically. Skipping that negotiation often prevents the startup crash entirely.

Here’s how:

1. Open Steam.
2. Go to your Library.
3. Right-click Granblue Fantasy: Relink.
4. Select Properties.
5. Find the Launch Options field.
6. Enter:

-dx12

Close the window and launch the game again.

Many players report that the black screen disappears immediately after enabling this launch option.

Fix 2 — Delete the Old Graphics Configuration

One of the biggest culprits after major expansions is outdated configuration data.

The original release stores graphics settings locally, and after Endless Ragnarok updates those rendering parameters, old configuration files can create conflicts before the engine even finishes loading.

Removing them forces the game to generate completely fresh settings.

Steps

1. Press Windows + R.
2. Type:

%localappdata%

3. Press Enter.
4. Open the GBFR folder.
5. Create a backup by copying the folder somewhere safe.
6. Navigate to:

Saved
→ SavedGames

Delete:

• GraphicSetting.vdat

If crashes continue afterward, remove:

• SystemData.dat

The game recreates these files automatically during the next launch.

Fix 3 — Hybrid Intel CPUs Need Special Attention

If you’re running an Intel 12th, 13th, 14th, or newer processor, your CPU includes both Performance Cores and Efficiency Cores.

Normally that’s fantastic for productivity.

Some game engines, however, absolutely hate deciding where startup threads belong.

Endless Ragnarok appears to be one of them.

Option A — Keep Process Lasso Running

A surprisingly simple workaround involves installing Process Lasso.

Interestingly, many players don’t even configure it.

Simply leaving the application open while launching the game allows Windows to distribute threads more consistently.

It sounds ridiculous.

It also works far more often than it should.

Option B — Temporarily Disable E-Cores

If Process Lasso doesn’t help, the more aggressive solution is disabling Efficiency Cores.

You can accomplish this by:

• entering your motherboard BIOS
• disabling E-Cores
• saving changes
• booting Windows normally

Another option is adjusting core behavior with Intel XTU instead of modifying BIOS settings.

While not ideal for everyday gaming, this has solved launch crashes for many high-end Intel systems.

Fix 4 — Perform a Completely Clean GPU Driver Installation

Updating drivers over existing installations isn’t always enough.

Old driver files can remain behind for months, especially after multiple Game Ready updates.

Those leftovers occasionally conflict with new rendering pipelines introduced by large expansions.

The safest solution is performing a clean installation.

Recommended process

1. Download Display Driver Uninstaller (DDU).
2. Download the latest stable GPU driver from NVIDIA or AMD.
3. Boot Windows into Safe Mode.
4. Run DDU.
5. Remove every existing graphics driver component.
6. Restart Windows.
7. Install the freshly downloaded driver.

Avoid beta drivers unless the developers specifically recommend them.

Stable releases generally produce fewer launch issues.

Fix 5 — Disable Every Overlay You Can

Modern PC gaming is packed with overlays.

Steam.

Discord.

NVIDIA App.

MSI Afterburner.

RivaTuner.

Xbox Game Bar.

RGB software.

Monitoring tools.

Each one injects itself into the rendering pipeline.

Normally that’s harmless.

Occasionally, especially after engine updates, those hooks become exactly what prevents the game from starting.

I’d recommend disabling every unnecessary overlay temporarily.

Especially:

• Steam Overlay
• Discord Overlay
• NVIDIA Overlay
• Xbox Game Bar
• Third-party FPS counters

If the game launches afterward, simply re-enable them one at a time until you discover the culprit.

Fix 6 — Turn Off Control Flow Guard for the Game

Windows 11 includes several advanced security protections.

One of them is Control Flow Guard (CFG).

While it’s an excellent security feature overall, certain games occasionally misbehave when CFG aggressively monitors executable memory.

To disable CFG only for the game

1. Search for Exploit Protection.
2. Open Program Settings.
3. Choose Add program to customize.
4. Select the game’s executable.
5. Locate Control Flow Guard.
6. Enable Override system settings.
7. Set CFG to Off.
8. Apply the changes.

Because this adjustment affects only one executable, it avoids disabling Windows security globally.

Fix 7 — Disconnect Extra USB Devices Before Launch

This one caught me completely off guard the first time I tested it.

The game initializes every connected input device during startup.

Controllers.

Flight sticks.

Steering wheels.

Audio interfaces.

USB hubs.

Some devices appear to stall the initialization process long enough for the engine to terminate itself.

Try this sequence:

1. Disconnect unnecessary USB devices.
2. Leave only your keyboard and mouse connected.
3. Launch the game.
4. Don’t press any buttons during the intro logos.
5. Wait until the Press Any Button screen appears.
6. Connect your controller afterward.

Steam Input usually detects it instantly without crashing the game.

Extra Things Worth Trying

If none of the above solves your issue, these smaller tweaks have also helped portions of the community.

• Verify game files through Steam.
• Disable overclocking temporarily.
• Close RGB software.
• Run Steam as Administrator.
• Install the newest Windows updates.
• Disable antivirus real-time protection for testing.
• Remove launch mods or Reshade files.
• Reinstall Microsoft Visual C++ Redistributables.
• Ensure enough free storage remains on your SSD.

None of these are guaranteed fixes individually, but together they’ve resolved stubborn launch problems for many players.

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Final Thoughts

I’ve spent hundreds of hours with Granblue Fantasy: Relink, and Endless Ragnarok easily feels like one of the game’s strongest updates. The new encounters are challenging, the expanded progression loop gives veterans something meaningful to chase, and the cooperative boss fights are exactly the kind of content that keeps players coming back.

That makes these launch crashes even more frustrating.

Fortunately, most of the issues aren’t caused by broken hardware or permanently corrupted installations. They’re usually the result of Windows 11 compatibility quirks, outdated configuration files, overlay software, or Intel’s hybrid CPU scheduling.

If I had to recommend the fixes in order of success rate, I’d start with forcing DirectX 12, deleting the old graphics configuration, disabling overlays, and testing Process Lasso on newer Intel processors. Those four solutions alone seem to account for the majority of successful community reports. If the crashes persist, moving on to a clean GPU driver installation with DDU and temporarily disconnecting extra USB devices often finishes the job.

Cygames will almost certainly continue releasing optimization patches over the coming weeks, but until then, these workarounds remain the most reliable path back into the Sky Realm. Once the game finally reaches the title screen without crashing, you’ll be free to focus on what really matters—taking down colossal bosses with your crew instead of fighting Windows 11 every time you hit the Play button.

✅ How To Fix Granblue Fantasy: Relink Launching Failed, Black Screen, Not Starting, Stuck & Running