Unreal Engine Issues
Unreal Engine Issues
Running Automation Test for Directory Watcher Causes the Editor to Crash
UE - Automation Test - Nov 2, 2015Running an automation test for Directory Watcher for Plugins causes the editor to crash on the Simple Modify step. Occurs only in 4.10 Preview 3. Regression: This does not occur in 4.9.2, but occu ...
AttachToComponent replication snapping to position instead of keeping relative location
UE - Networking - Feb 15, 2019When using AttachToComponent at runtime, the attachment does not replicate properly for some clients. The relative transform/rotation is not maintained. The user who reported this issue mentioned th ...
No scroll bar is created when the Collision Preset section of Project Settings is expanded
Tools - Mar 15, 2015No scroll bar is created when the Collision Preset section of Project Settings is expanded. Clicking an element in the Preset section does not add the scroll bar. Collapsing the section and re-exp ...
Wires cannot be Ctrl + dragged off reroute nodes
UE - Gameplay - Blueprint - May 19, 2015Wires cannot be Ctrl + dragged off reroute nodes. Ctrl + clicking and dragging the wire from a pin on other nodes acts the same as Ctrl + click-dragging from the pin itself, but on Reroute nodes thi ...
SpeedTree Billboards rendering with Incorrect Material
Tools - Dec 12, 2016Material Billboards for SpeedTree assets are rendering with the incorrect material. This can occur to any pre-existing project, or a new project with imported SpeedTree content using both 3d LODs an ...
Shader compilation errors when packaging for iOS after disabling force full precision
UE - Platform - Mobile - May 29, 2024User report: I want to run iOS shaders with half precision floats as I do on Android. If I disable Force 32 bits Floating Point Precision, there are unfortunately a bunch of shader compilation error ...
iOS movie become laggy and crashes when played in iPhone 6/6s.
UE - Platform - Mobile - Feb 24, 2017Movie play in iOS is laggy and crashes in some movie. This issue seems to be happening when the movie is played in umg widget. Tested in 4.14.3 4.15 Dev_Mobile Latest as of 2/24 Original UDN post ...
[CrashReport] UE4Editor_CoreUObject!TFastReferenceCollector<1,FGCReferenceProcessor<1>,FGCCollector<1>,FGCArrayPool,0>::ProcessObjectArray()
UE - Foundation - Core - UObject - Jul 19, 2017This is a common crash affecting users in 4.16. Over 100 users have been affected, although they have not provided additional information. Source Context 469 TokenStreamIndex++; 47 ...
Sequencer animations using Skeletal Mesh Pose don't play properly if following another sequence with an animation using Keep State
UE - Anim - Sequencer - Feb 20, 2019The bug affects skeletal mesh animations when played in sequencer with AnimBP after another animation which was set to Keep State. This is a follow-up to [Link Removed]. Two animations now play cor ...
[MetaSounds] - Trigger inputs called by Execute Trigger Parameter refire on MetaSounds that become active after virtualization
UE - Audio - MetaSounds - Aug 31, 2023If trigger execute is called in Blueprint, it will fire every time the sound recovers from being virtual, even if it has not been called again. See video example: [Link Removed] Also occurs in Re ...