IS-IN-FC02 cannot install UE 5.2 on mac

Aiden_Kim_23 · April 25, 2026, 1:18pm

Hi,

I am experiencing a persistent installation error IS-IN-FC02 while trying to install UE 5.2 or 5.7on my Mac.

I have already tried the following troubleshooting steps, but the issue remains:

Granted Full Disk Access to the Epic Games Launcher in System Settings.
Verified that the installation folder (/Users/Shared/Epic Games) has Read & Writepermissions.
Cleared the webcache folder in ~/Library/Caches/com.epicgames.EpicGamesLauncher.
Restarted the launcher and my Mac multiple times.

Despite these efforts, the installation still fails with the same error code.

System Information:

Mac Model: MacBook Air M2
macOS Version: macOS Ventura 13.7.8( I also tried
Storage: Internal SSD

Could you please investigate this issue and let me know if there are any other steps I should take?

Thank you.

Jimbohalo10 · April 25, 2026, 1:34pm

IS-FC02 or IS-RE-FC02: Failed to create file - Epic Games Store Support

Aiden_Kim_23 · April 27, 2026, 12:31am

I’ve already tried this, but the issue still persists.

AwakeCollege5601 · April 29, 2026, 8:11pm

I’m having the same error…

cookedtoash · April 30, 2026, 2:53am

Im also having this error

murcielao7 · April 30, 2026, 8:01pm

same error here, I have tried literally everything

RoccoStrongman · May 5, 2026, 11:01pm

I am having the same issue, it stops installing at around 80%. Then goes to intitializing to then resuming. Then gives me this failure error…

c_line.rib · May 6, 2026, 4:23pm

Same error

Pieroscovic · May 6, 2026, 7:50pm

IS-IN-FC02 issue on Mac with Epic Games Launcher 19.3.3:

After extensive debugging, I found that the error is NOT related to file corruption, permissions, or disk space. The real issue is that the launcher downloads and constructs all files correctly in the staging area (~49GB, 142,000+ files), but then MoveFromStageTime: 0 — it never moves anything from staging to the final destination, and fails with FC02.

This happens consistently regardless of:

Install path (Shared or home directory)
Selected components (with or without Engine Source, Starter Content, Templates)
Running the launcher with sudo
Clearing all caches and manifests

Key log evidence:
Build Stat: MoveFromStageTime: 0 us
Build Stat: FileAttributesTime: 0 us
Build Stat: FailureType: FileConstructionFail
Build Stat: ProcessSuccess: FALSE

This looks like a bug introduced in launcher version 19.3.3 on macOS 15.x (Sequoia). The staging phase completes successfully but the move-to-destination phase never executes.

System: MacBook Pro, macOS 15.7.2, Apple Silicon, Launcher 19.3.3

Hope Epic can investigate this. In the meantime I’m using Remote Build from Windows as a workaround.

Nihang_Lama · May 7, 2026, 2:21pm

Hope they will fix it soon.Let me know if you got solution.

zxcvbnmHG · May 16, 2026, 9:58am

ME TOO

Mrs_Armitage · May 17, 2026, 2:02pm

Same here, Sequoia 15.4.1, Epic games launcher 19.2.3 (updated to Version 20.0.1), iMac 2020

Klazod · May 17, 2026, 2:21pm

Same, Tahoe 26.5

Makerel13 · May 22, 2026, 8:53pm

this has not been fixed since a long time it still persists even on macOS 26.4 and macOS Sonoma 14.8 .

RONINS_LEGEND · May 24, 2026, 7:38pm

Im having the same issue and the bad part is I have to use this software since Im attending Full Sail University.

ceabutera · May 25, 2026, 4:09pm

Same issue here on macOS Tahoe 26.5. I talked to an Epic Games assistant and they said they’ll look into it soon. Also I think it happens because the Epic Games Launcher isn’t updated for the most recent versions of macOS.

Ladderdaytaints · May 27, 2026, 2:32pm

Same, Tahoe 26.5

maxkcas · May 29, 2026, 5:23pm

Same, Sonoma 14.8.5

Dev.A.Adnan · May 31, 2026, 10:49pm

Hello,
in my case I was trying to install the UE in a secondary volume (not the same volume where the Epic launcher is installed) so those steps worked fine for me:
Symlink directory bridge fix

Fools the Epic launcher into writing to a secondary APFS volume via a transparent symlink at the path it expects.

1

Remove any previous failed install attempt

Clean up leftover Epic Games folders from prior attempts to avoid conflicts.

sudo rm -rf "/Users/Shared/Epic Games"

2

Create the real destination on your secondary volume

This is where the actual UE files will live — on your AdnanFiles volume with plenty of free space.

mkdir -p "/Volumes/AdnanFiles/Coding_Work/Epi/Epic Games"

3

Create the symlink bridge

This creates a transparent redirect. The launcher thinks it’s writing to /Users/Shared/Epic Gamesbut macOS silently reroutes everything to your secondary volume.

ln -s "/Volumes/AdnanFiles/Coding_Work/Epi/Epic Games" "/Users/Shared/Epic Games"

Verify the symlink was created: ls -la "/Users/Shared/" | grep Epic — you should see an arrow (->) pointing to your AdnanFiles path.

4

Install via Epic Games Launcher normally

Open the Epic Games Launcher → Unreal Engine → Library → click + → select your version → when prompted for install location, use the default path exactly as shown:

/Users/Shared/Epic Games/

Do not change this path. The launcher will write there, macOS will redirect everything to AdnanFiles automatically.

Result: Installation proceeds past 0% and completes without throwing IS-IN-FC02. Files land at /Volumes/AdnanFiles/Coding_Work/Epi/Epic Games/

ceabutera · June 1, 2026, 2:40pm

hi, i tried everything you just shared, but i dont have a secondary volume so i just did it on the one i have, but it didn’t work and still gave me this exact same issue. i’m guessing it is because i’m doing it on the same thing where my epic games launcher is installed, but i thought it was worth giving it a try.. thank you though !