Latest C++ topics - Epic Developer Community Forums

Topic	Replies	Views	Activity
电脑意外断电后，蓝图编译的HotReload ... 类 Blueprint , question , CPP , unreal-engine	0	50	May 19, 2026
"Cannot open source file" on generated engine files? question , CPP , unreal-engine , UE5-0	4	2106	May 18, 2026
PlayerController.cpp line 5563 - Why is blueprint Tick called after PlayerTick and not before? Blueprint , question , CPP , bug-report , unreal-engine	2	148	May 18, 2026
Custom character movement flight controller having issues with not returning upright question , unreal-engine , charactermovementcom	1	72	May 17, 2026
Dragging a Card on a Board question , unreal-engine	2	86	May 17, 2026
UE5.8 Preview: Custom plugin reports "undefined class 'XXX_API'" when using GameplayAbilities classes question , CPP , unreal-engine	2	183	May 16, 2026
WatchOutput works correctly on the initial play, but after calling SetSound and Play again, the output callback never fires. unreal-engine	1	64	May 15, 2026
Editor freeze when selecting Instanced Static Mesh Actor question , editor , CPP , unreal-engine	0	42	May 14, 2026
Using your own CEF-instance in Standalone Play mode. unreal-engine	0	140	May 9, 2026
Rotating an object by Line Trace question , unreal-engine	8	135	May 7, 2026
Network: How not to send all PRC every tick? question , CPP , unreal-engine	3	177	May 7, 2026
The following modules are missing or built with a different engine version question , CPP , error , unreal-engine	29	40920	May 6, 2026
[BUG?] Transaction system causing GC related crash when using widget reflector question , editor , unreal-engine	0	74	May 6, 2026
How to handle weapon bones when using Mixamo animations? question , unreal-engine	0	41	May 6, 2026
Limited-Time Legacy Seasons and Older BattlePass Completion unreal-engine , fortnite	1	69	May 5, 2026
Movie Render Queue Still image automation not working in UE 5.5.3 question , Rendering , unreal-engine , movie	2	310	May 5, 2026
File Not Found in Current Source File's Build System Paths question , unreal-engine	4	168	May 5, 2026
How to inject a custom multi-pass RDG post-process effect as a distributable plugin — without modifying PostProcessing.cpp? question , CPP , unreal-engine	0	94	May 3, 2026
Unable to instantiate UnrealEd module for non-editor targets unreal-engine	12	23019	May 1, 2026
LearningAgentsInteractor::SetActionVector , size check uses wrong getter bug-report , bug , unreal-engine , Learning-Agents , Reinforcement-Learning	1	66	May 1, 2026
Common UI Input ignores Arrow Keys question , unreal-engine	2	106	May 1, 2026
Allowing the Client to Move a Character Locally question , CPP , unreal-engine	8	199	April 30, 2026
UE 5.7 K2Node async : FString parameter in DECLARE_DYNAMIC_MULTICAST_DELEGATE does not generate output pin on the BP node Blueprint , question , CPP , unreal-engine	1	86	April 30, 2026
The Epic Games Launcher - Launching the shittiest shitt launcher in the history of humanity launcher , unreal-engine , epic , epic-games-launcher , fortnite , epic-games-store	0	60	April 30, 2026
Question about actor component dependencies and notifications question , unreal-engine	4	125	April 28, 2026
How to select a Section in the Outliner of the Sequencer Editor with C++? question , unreal-engine	1	72	April 28, 2026
UE5.3 - Compile error in BlackboardKey.h when compiling a class inheriting from UBTTaskNode question , unreal-engine	1	183	April 28, 2026
Ray Tracing Causes Crash On Linux Linux , question , CPP , bug-report , Rendering , unreal-engine	1	119	April 27, 2026
Response to Custom Trace Channel not working UE5.1 C++ question , unreal-engine	2	745	April 27, 2026
Any reliable event / function when PlayerController possesses a pawn? unreal-engine	4	1978	April 27, 2026