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Current Available Quick-Fix Solutions

Since the launch of UE4, we have been working as quickly as possible to resolve important issues as they have been reported to us. Once an important fix has been made, we sometimes respond directly to the affected users by providing a QFE (“Quick Fix Engineering”) which we share here on the forums and Answerhub.

These QFEs eventually get rolled into the hotfixes and major version release updates that we provide for all, but until those updates we want to make sure that they are available to the select users who need them.

  • Please be aware that QFEs should only be used by the individuals who are experiencing the select issue; they do not provide any additional features or improvements for other users.
  • QFEs are for the binary editor from the Epic Games Launcher. Github users can update from the Release branch to get the current fixes.

AVAILABLE QFEs in latest Engine version

QFEs for Previous Releases

If you experience any issue with a QFE you have applied, please reach out to us on the AnswerHub, in the Installation & Setup section. Thanks!

This thread has been updated with a QFE to resolve a 4.2 Mac SVN issue.

Update: QFE was rolled into the 4.2.1 hotfix

This thread has been updated with a QFE to resolve a 4.2.1 Blueprint crash with dependencies.

UPDATE: Also, the same fix is now available for 4.3.1

This thread has been updated with a QFE to resolve a 4.6.0 crash caused by non-ASCII characters.

Update: QFE was rolled into the 4.6.1 hotfix.

This thread has been updated with a QFE to resolve a 4.6.1 issue with Launching and Packaging for iOS.

This thread has been updated with a QFE to resolve the issue with Launching and Packaging for iOS for 4.5.1.

This thread has been updated with a QFE to resolve an error while attempting to submit apps to the Apple store on Mac for 4.9.1.

Update: QFE was rolled into 4.9.2 hotfix

This thread has been updated with a QFE to resolve the compile issue when using Visual Studio 2015 Update 3 on 4.11.2.

This thread has been updated with a QFE for 4.13.1 to resolve an Android Google Play security alert.

Update: QFE was rolled into the 4.13.2 hotfix

This thread has been updated with a QFE for 4.14.1 to resolve frequent crashes with the error message Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - ‘HUNG’) as reported in UE-37999 & UE-38818.

Update: QFE was rolled into the 4.14.2 hotfix

This thread has been updated with a QFE for 4.14.2 to resolve a frequent crash when importing FBX as reported in UE-40229

Update: QFE was rolled into the 4.14.3 hotfix

This thread has been updated with a QFE for 4.17.0 to resolve a UBT crash that causes failure to compile on incremental builds, reported as UE-48197

Update: QFE was rolled into the 4.17.1 hotfix

This thread has been updated with a QFE for 4.18.3 to remove usage of MTLDebugDevice private API in shipping builds.