Unreal Engine Issues
Unreal Engine Issues
Certain combined Linear/Angular movements cause Client to freeze for several seconds
UE - Simulation - Physics - May 24, 2019When using Replicated Movement, certain combined linear/angular movements cause the client to freeze for several seconds and then catch up to the server. This is a regression from 4.21.2 (CL-4753647 ...
RemoveAxisMapping() removes axis mappings of the same key regardless of Scale value
UE - Gameplay - Jun 26, 2019When you remove an axis mapping using a specific key it will remove all mappings even if they have separate scales. The user found a fix that I verified that worked. In "InputSettings.cpp", which i ...
Behavior of reparenting Component on UE5 is different from UE4
UE - Gameplay - Blueprint Editor - Mar 29, 2022In UE4, Reparenting the Child Component did not update it on the screen, but the Relative Transform was updated. However, UE5 now retains Relative Transform, so there are on-screen updates. This is ...
Virtual Heightfield Mesh crash using released Vertex Factory
UE - Rendering Architecture - Jul 25, 2023When using VirtualHeightfieldMesh we see intermittent crashes in FDepthPassMeshProcessor::TryAddMeshBatch(). This can happen when FVirtualTextureProducerCollection::CallPendingCallbacks() is called ...
Editing Struct variable types can cause pins of an array of that struct to become disconnected
UE - Gameplay - Blueprint - Jun 6, 2016When changing the variable type of a variable in a struct, it can cause some pins related to arrays of this struct to become disconnected. The project provided was from the Marketplace, entitled "Su ...
Editor crash when using Straighten Connection shortcut key
UE - Gameplay - Blueprint - Feb 8, 2017Using Straighten Connections shortcut can cause the editor to crash after removing node pins. This appears to be due to GetGraphPinForMenu returning the last pin selected (in this case, the removed ...
Point lights with source length building static lighting in incorrect direction
UE - Graphics Features - Mar 21, 2018There is an issue where Point lights with source length building static lighting in the incorrect direction, the axis in which the light to be built seem to conflict with the preview build. This iss ...
Editable text box caret blinks slowly when manually setting focus
UE - Editor - UI Systems - Oct 18, 2018For some reason, it appears that manually setting the focus (whether it be user, keyboard, or both) on an editable text box in UMG causes the caret to blink slowly. However if you were to manually s ...
Properties of placed-in-map actor instances may not replicate if their default has been edited
UE - Networking - Mar 26, 2019If the default value of a replicated property is edited on an instance of a placed-in-map actor, then on the server is value is changed back to the default, a client who joins in progress after this ...
[AI] FInstancedStruct is not dupilicated properly if values are different from an Actor's defaults
UE - AI - Jan 24, 2024A licensee reports that the values of an FInstancedStruct do not get properly duplicated if they differ from the default values of the Actor or TArray to which they belong. Possible short-term wo ...