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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

    There are no QFEs for the latest engine version

    QFEs for Previous Releases

    3/9/2018 - Version 4.18.3 - Engine - Removed usage of MTLDebugDevice private API in shipping builds

    Windows QFE
    http://cdn.unrealengine.com/qfe/QFE-...ob-8307360.exe

    Mac QFE
    http://cdn.unrealengine.com/qfe/QFE-...ob-8307360.zip

    7/11/2016 - Version 4.11.2 - Engine - Fixes compile issue when attempting to use Visual Studio 2015 Update 3

    [Windows] Download and run this file: https://s3.amazonaws.com/unrealengin...CL-3044413.exe
    2/6/15 - Version 4.6.1 - Engine - Fixes issue where editor incorrectly detected that iTunes wasn't installed and would not allow any iOS Launch On or Package.

    [Windows] Download and run this file:
    2/10/15 - Version 4.5.1 - Engine - Fixes issue where editor incorrectly detected that iTunes wasn't installed and would not allow any iOS Launch On or Package.

    [Windows] Download and run this file:
    7/31/14 - Version 4.3.1 - Engine - Fixes a crash that occurs with Blueprints that have soft and hard dependencies.
    Issue reported here: https://answers.unrealengine.com/que...coverable.html

    [Windows] Download and run this file:
    [Mac] Download and run this file:
    7/31/14 - Version 4.2.1 - Engine - Fixes a crash that occurs with Blueprints that have soft and hard dependencies.
    Issue reported here: https://answers.unrealengine.com/que...coverable.html

    [Windows] Download and run this file:
    [Mac] Download and run this file:
    4/17/14 - Version 4.0.2 - Launcher - Launcher fails to launch after install on Mac; can't read some info about mouse
    Issue reported here: https://answers.unrealengine.com/que...fails-osx.html

    Download these two files:
    When you get them, install Unreal Engine app from UnrealEngine_QFE_2039063.dmg to your /Applications folder, then open Terminal app and type:
    • open /Applications/Unreal\ Engine.app --args -noselfupdate

    -noselfupdate argument is important because without it the app would update to official version that doesn't work for you. After you download the engine using Unreal Engine app, unzip QFE-FromCL-2034640-Shelve-2048959.zip and run the patch installer it contains. After that you should be able to use the editor etc. You can start the editor by launching it directly: /Users/Shared/UnrealEngine/4.0/Engine/Binaries/MacUE4Editor.app.

    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!
    Last edited by Stephen Ellis; 09-17-2018, 09:44 AM.
    Stephen Ellis | Enterprise Program Coordinator

    #2
    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
    Last edited by Stephen Ellis; 07-31-2014, 10:52 AM.
    Stephen Ellis | Enterprise Program Coordinator

    Comment


      #3
      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
      Last edited by Stephen Ellis; 07-31-2014, 05:28 PM.
      Stephen Ellis | Enterprise Program Coordinator

      Comment


        #4
        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.
        Last edited by Stephen Ellis; 02-06-2015, 04:21 PM.
        Stephen Ellis | Enterprise Program Coordinator

        Comment


          #5
          This thread has been updated with a QFE to resolve a 4.6.1 issue with Launching and Packaging for iOS.
          Stephen Ellis | Enterprise Program Coordinator

          Comment


            #6
            This thread has been updated with a QFE to resolve the issue with Launching and Packaging for iOS for 4.5.1.
            Stephen Ellis | Enterprise Program Coordinator

            Comment


              #7
              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
              Last edited by Stephen Ellis; 01-17-2017, 12:09 PM.
              Adam Davis | Marketplace Support | Epic Games
              How to report a bug? | Installation & Setup issues? | Answerhub Bug Reports | Twitter

              Comment


                #8
                This thread has been updated with a QFE to resolve the compile issue when using Visual Studio 2015 Update 3 on 4.11.2.
                Stephen Ellis | Enterprise Program Coordinator

                Comment


                  #9
                  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
                  Last edited by Stephen Ellis; 01-17-2017, 12:16 PM.
                  Stephen Ellis | Enterprise Program Coordinator

                  Comment


                    #10
                    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
                    Last edited by Stephen Ellis; 01-06-2017, 05:39 PM.
                    Stephen Ellis | Enterprise Program Coordinator

                    Comment


                      #11
                      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
                      Last edited by Stephen Ellis; 01-17-2017, 12:17 PM.
                      Stephen Ellis | Enterprise Program Coordinator

                      Comment


                        #12
                        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
                        Last edited by Stephen Ellis; 08-28-2017, 02:02 PM.
                        Stephen Ellis | Enterprise Program Coordinator

                        Comment


                          #13
                          This thread has been updated with a QFE for 4.18.3 to remove usage of MTLDebugDevice private API in shipping builds.

                          Comment

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