Unreal Engine Issues
Unreal Engine Issues
AIController can't properly unpossess character
UE - AI - Nov 5, 2018There seems to be a bug with the Possess\Unpossess events. Because if you change the last node in "PossessCharacter", which is created in PlayerController(called "PC"), to Unpossess the AI still con ...
Smart Nav Links created via Load Level Instance are broken, but Simple Nav Links are fine
UE - AI - May 20, 2019Maps brought in via Load Level Instance that contain Nav Link Proxys configured to use the Smart Link instead of the Simple Link end up creating a link at the center of the world instead of their ac ...
Animation Montage Details Panel Closes When Attempting to Update Animation Segment Data
UE - Anim - Runtime - Apr 27, 2022Occurs 5/5 times. Details panel in Animation Montage goes blank when fields (Start Time, End Time, Play Rate, Loop count) are clicked in to update data. This defect also occurs when clicking in th ...
Pawn's role is incorrect in BeginPlay on client if a multicast RPC is called in BeginPlay on server
UE - Networking - Jun 6, 2022It seems as though calling a multicast RPC during BeginPlay on the server will cause the new actor to finish spawning on the client before applying any initial replicated data, such as the actor's R ...
AutoCreateRefTerm UFUNCTION meta specified can interfere with function default arguments
UE - Framework - Blueprint Editor - May 25, 2023Example function provided by the user:.h UFUNCTION(BlueprintCallable, meta = (AutoCreateRefTerm = "TestInt,TestName")) static void TestAutoRefs(const int32& TestInt = 2, const FName& TestName = ...
BSOD when launching Twinmotion on NVIDIA 50-series GPUs with 576.02 Drivers
TM - Rendering - Apr 22, 2025Reported from multiple users. NVIDIA RTX 50-series GPU users are reporting BSODs when attempting to launch Twinmotion with the latest drivers installed. The crashes occur on the 576.02 driver versi ...
Syncing changes in multi-user editing tool results in crash
UE - Virtual Production - Tools - Multi-user - Dec 18, 2019When using the multi-user editing tool inside a 4.24 project, persisting changes will sometimes result in a crash. Unable to reproduce the issue. However, the user has reported occasionally re ...
Duplicating an actor that calls a custom event from another actor receives compile error
UE - Gameplay - Blueprint - Jun 23, 2015Duplicating an actor that calls a custom event from another actor receives compile error until the node is removed and replaced. ...
Opening Gameplay Debugger while in PIE removes print string output from screen in subsequent PIE modes
UE - AI - Apr 23, 2015If a user opens gameplay debugger ( ' pressed while in PIE), all print string outputs to screen disappear, and will no longer appear during any PIE session until editor is closed and re-opened. Wo ...
Ctrl+z while playing in the blueprint editor will undo history
UE - Gameplay - Blueprint - Jun 9, 2015When pressing play within the blueprint editor, if you use control & z, it'll revert your changes you've made to the blueprint. Which could cause people to lose their progress in their blueprint tem ...