Unreal Engine Issues
Unreal Engine Issues
ShooterGame clients can fail to connect to a server under packet loss when network encryption is enabled
UE - Networking - Jul 17, 2020ShooterGame demonstrates the issue where when encryption is enabled, if the (unencrypted) EncryptionAck message is dropped, the resent messages will be encrypted since the server has enabled encrypt ...
Failed to build in Github UE4.27.0.
UE - Simulation - Core - Aug 30, 2021Failed to build UE4.27.0 with Win64/Development Editor. Can avoid this error that excluding the project from build configuration. (Solution UE4->Properties->Configuration Properties->Configuratio ...
Staging DLC is reportedly broken
UE - Foundation - Cpp Tools - Automation Tool - Dec 16, 2015According to a licensee, StageFiles() is called with ExcludeWildcard that contains a directory name ("Engine/*") and bRecursive=true when building DLC. This is not supported by Directory.GetFiles(). ...
Inconsistent documentation on how to use AsyncTasks
UE - Foundation - Core - Dec 16, 2014The documentation found here may be out of date:https://docs.unrealengine.com/latest/INT/API/Runtime/Core/Async/FAsyncTask/index.html From Lauren R: "Looking at P4, that example code is mostly from ...
Package Map may clear out references to GUIDs on clients but not servers
UE - Networking - Jul 13, 2020Upon Seamless Travel, the Package Map will attempt to clear out "old" entries in the Guid Cache by marking them with a timeout. The only entries that will actually be marked for a timeout are entrie ...
Lumen tile classification flicker
UE - Rendering - Graphics Features - Lumen - Apr 19, 2023While we suggest using screenpercentage at 25%, it is visible at higher percentages. Video showing the flickering:https://udn.unrealengine.com/s/contentdocument/0694z00000Qw4jPAAR ...
Trying to diff previous versions of Blueprints using the Git plugin currently fails.
UE - Gameplay - Blueprint Editor - Aug 11, 2016Diffing a Blueprint does not currently work when looking at previous commits. The diff appears to be looking at pointer files instead of the actual Blueprint files themselves. When using the Git LF ...
Outside of AnimBP's, Animation Sequences with negative Rate Scales do not animate
OLD - Anim - Mar 20, 2015Animation Sequences with negative Rate Scales do not play outside of using them in Animation Blueprints...unless they are looping. UPDATE: A negative rate scale value also breaks Anim Montages. ht ...
Code classes that include a CableComponent cannot be built in Visual Studio without making a modification to the CableComponent.h file in source code.
UE - Gameplay - May 14, 2015Adding a cable component to a custom code class will result in a build failure in Visual Studio unless the Cable Component's source code is modified to include CABLECOMPONENT_API. ANSWERHUB:https:/ ...
Hot Reload Crash involving variables in USTRUCTs
UE - Foundation - Cpp Tools - Hot Reload - Sep 1, 2016This issue was created for this UDN post: https://udn.unrealengine.com/questions/306933/hotreload-crashbad-behavior-when-addingremoving-pa.html This repro is based off his last repro, cutting it do ...