Epic have released a hotfix for Unreal Engine, 4.14.1. Composed entirely of fixes, over 50 issues were revolved.
The hotfix consists of:
Fixed in 4.14.1
Fixed! UE-35609 Delay nodes used in a macro cause subsequent macro calls during the delay to never complete
Fixed! UE-38690 Regression – Nested scene component subobjects are no longer being registered when the owning scene component is added to an existing Actor instance as an instanced component.
Fixed! UE-38835 Rename “Visual Studio ’15′” to “Visual Studio 2017”
Fixed! UE-39298 UE4 and UnrealLightmass fail to build Module.SwarmInterface.cpp due to an error trying to open include file ‘metahost.h’ in SwarmInterface.cpp
Fixed! UE-39284 Running GenerateProjectFiles.bat -2017 completes with warnings
Fixed! UE-38898 UE4 is not compatible with Visual Studio 2017 RC
Fixed! UE-38604 PS4 Platform Staging copies debug files (not allowed)
Fixed! UE-38992 [CrashReport] UE4Editor_Core!FString::Mid() [unrealstring.h:1154]
Fixed! UE-37249 MallocPoisonProxy can result in a memory stomp for aligned allocations in Debug and Development
Fixed! UE-38991 [CrashReport] UE4Editor_Engine!FUObjectAnnotationSparse<FBoolAnnotation,1>::AddAnnotation() [uobjectannotation.h:76]
Fixed! UE-38752 Cannot Delete Folder Containing Sub Folders from Content Browser
Fixed! UE-38721 Mouse cursor position is locked to center of screen when bShowMouseCursor is false
Fixed! UE-38599 User Defined Struct Editor Hides Long Variable Lists
Fixed! UE-38706 Dropdowns display incorrectly in non 1:1 zoom in BP on Mac and PC
Fixed! UE-38806 Potential fatal assert when using a custom MID with a TextRenderComponent
Fixed! UE-39059 No scrollbar in Structure UI
Fixed! UE-39198 Limited range of motion when controlling the camera view with the mouse
Fixed! UE-11796 Deleting folders in the Content Browser will not delete them permanently from Project Folder
Fixed! UE-38925 Reimport for a single FBX with multiple meshes will add all mesh pieces instead of the single mesh.
Fixed! UE-38935 Crash with FBX Import as Skeletal Mesh
Fixed! UE-38749 Pressing enter does not appear to activate OnClicked events in UMG When a button is focused
Fixed! UE-37698 Widgets can no longer take focus after clicking somewhere other than the widget itself
Fixed! UE-36766 Crash attempting to open an asset from Aim Offset graph in Persona
Fixed! UE-38811 Camera attached to a Spring Arm jitters when put at a +90 or -90 degree angle on the Y axis.
Fixed! UE-38906 Crash when streaming in a level with a child actor
Fixed! UE-38518 Animation Blueprint: Default values cannot be changed after compiling if node is currently selected
Fixed! UE-39197 Delay node of 0.0 causes crash
Fixed! UE-39137 Crash when Dragging Skeletal Mesh with Apex Clothing into Level
Fixed! UE-38998 [CrashReport] UE4Editor_Engine!UMaterialInterface::GetBaseMaterial() [materialinterface.cpp:268]
Fixed! UE-38716 Physics are popping in Vehicle Advanced Template
Fixed! UE-38989 [CrashReport] PhysX3PROFILE_x64!physx::PxcDiscreteNarrowPhase() [pxcnpbatch.cpp:293]
Fixed! UE-38694 Landscape Grasstype warning causes log spam when landscape is streamed in or out
Fixed! UE-39278 Assertion failed: !LandscapeActor || LandscapeActor == Landscape
Fixed! UE-38900 Paper2d Plugin Content Missing from Content Browser
Fixed! UE-39120 ETC2 Android devices are no longer supported in the Google Play Store as of 4.14
Fixed! UE-37101 Xbox One: Issues updating texture subregions
Fixed! UE-35738 IPv6 implementation is not working on IOS
Fixed! UE-39420 QAGame crashes when launched onto Android
Fixed! UE-38709 Using Deferred Decal Material With Dbuffer Decal Enabled Crashes Editor
Fixed! UE-38223 Crash In Material Editor When Previewing A Node
Fixed! UE-39051 Engine crash when Scene Capture Component 2D is added to viewport with forward rendering
Fixed! UE-39123 Mac Editor crashes when opening Realistic Rendering sample – FMetalRHICommandContext::RHISetShaderUniformBuffer
Fixed! UE-38609 DFAO runs out of memory on xb1 (DX11 RHI) due to an RHI bug
Fixed! UE-38699 Material Expression comparison keys incorrect, produces duplicate code
Fixed! UE-38325 Tangent Update Feature Not Working
Fixed! UE-38768 Contact Shadow artifacts with ray lengths despite length
Fixed! UE-34264 Procedural Mesh Component Crashes on XB1
Fixed! UE-39132 Crash when adding actors to the level
Fixed! UE-38353 Crash while deleteing a UMG Animation Track referencing a deleted UMG asset with duplicated BSPs in-scene
Fixed! UE-39067 Oculus Touch controllers jitter when the gamethread runs quickly
Fixed! UE-39113 Post process material needs a full RT clear with hmd mask.
Fixed! UE-39122 Crash when Simulating in Editor after Painting Foliage
Fixed! UEVR-381 Interleaved Compositor: Execute init views before late update
Fixed! UEVR-379 Interleaved Compositor: Implementing Post-Present handoff
Fixed! UE-38670 New IsA() code can be thread-unsafe during saving
You can read more about the release here.