Unreal Engine Issues
Unreal Engine Issues
Compile error with Local Variable of a Struct that contains a Set or Map type
UE - Gameplay - Mar 7, 2017Compile error with Local Variable of a Struct that contains a Set or Map type. Standard and array variables work without issue. Non-local variables also work without issue. ...
Attempted to use an out of date DemoNetDriver when using DemoPlay through blueprints
UE - Networking - Oct 27, 2017Users are not able to play a Demo in PIE using the Execute Console Command node to run the demoplay command. The following warning spams the output log while the demo is still trying to open:LogWor ...
Unable to input with IME in widget component.
UE - Editor - UI Systems - Feb 12, 2020Unable to input IME text in widget component, but able to input IME text in textbox like UMG designer. It works fine until 4.21, however it wasn't able to work after 4.22. Workaround: void FSla ...
UBlueprintFileUtilsBPLibrary is inaccessible through Python script
UE - Editor - Workflow Systems - Oct 7, 2020The BlueprintFileUtilsBPLibrary API is not accessible through python scripts run in the editor. Attempting to run a script utilizing BplueprintFileUtilsBPLibrary results in:LogPython: Error: Traceb ...
EOS Voice plugin causes a crash after adding "DefaultPlatformService=EOS" to the DefaultEngine.ini then restarting the editor
UE - Online - Jan 10, 2022This is not a regression. Doesn't affect UE5. The editor crashes on start up after enabling EOS Voice Chat, and updating the .ini to include DefaultPlatformService=EOS. Removing DefaultPlatformServ ...
Changing per layer parameters in a layered material that writes to RVT can cause temporary visual corruption
UE - Rendering - Architecture - Sep 12, 2025When using a layered material that writes to a runtime virtual texture. Sometimes when modifying a layer parameter in the material instance editor. The cached material data in the runtime virtual ...
Cached State Machine is re-initialized whenever cached pose is referenced
OLD - Anim - May 19, 2015This may not be an expected use of state machines, but it is becoming a showstopper for a couple of users. These user's are caching their locomotion state machine and then using a second state mach ...
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 ...
OnClicked events do not trigger on objects 100k units away from camera
UE - Gameplay - Mar 26, 2015Objects that are 100k uu+ away from camera do not trigger "OnClicked" events ...
LIVE: Morph Targets do not update in Construction Script
OLD - Anim - Oct 21, 2014Morph Targets do not update in Construction Script Tested in 4.5 Release and in Latest Promoted (//depot/UE4/Promoted-CL-2323471) ...