Unreal Engine Issues
Unreal Engine Issues
UE4 Ignoring Bone information from FBX Exported from 3DSMax
Tools - Nov 23, 2015The licensee has provided an animation created in 3DSMax where the Weapon Bone is stationary to which they attach a weapon socket in the editor. However, once imported into the editor, the Weapon B ...
Detail Customizations don't work with editinline
Tools - Nov 25, 2015Using the EditAnywhere specifier for a UPROPERTY results in some options not being visible in the editor that are visible when using VisibleAnywhere. ...
Using Attach To in Construction Script Causes the Editor to Crash
UE - Gameplay - Blueprint - Nov 17, 2015After creating a blueprint with a box trigger and a cube component, attempting to use an AttachTo (Box) node and then attaching the cube to the In Parent socket compiles without issue. However, if y ...
Calling Open Level causes editor to freeze or crash
UE - Gameplay - Jul 14, 2015If the Open Level node is called on a persistent level Whttp://crashreporter/Crashes/Show/1838504 then the editor will freeze is the call is made through code or crash if done through blueprints. C ...
Compile failure adding BTTask_RunBehavior C++ class to project
UE - AI - Dec 22, 2016Error message in log is:CompilerResultsLog:Error: Error MyBTTask_RunBehavior.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl IGameplayTaskOwnerInterface::OnGameplay ...
Compute shader TAADilateVelocity crashes on macOS
UE - Platform - Mac - Oct 14, 2021Summary A licensee recently integrated the Oceanology 5 plugin from the marketplace and it triggered a crash on macOS/Metal.Platform The licensee is running macOS Bit Sur 11.5.2 on an AMD Radeon Pro ...
Repeated GPU Timeout after drawing to render target
UE - Rendering - Features - Dec 7, 2022(Enduring Games) Included Insights trace to show the memory spike in LLM followed by some pretty large time cost frames in the timeline. (Link to insights trace in comments section) ...
Take Recorder - Viewport Freezing and Performance Degradation When Recording Without Subsequences
zComponent - Archive - Apr 11, 2024Description: In Unreal Engine 5.4, when recording camera movements using the Take Recorder with the "Record Sources Into Sub Sequences" option turned off, significant viewport freezing and performan ...
UbaAgent in 5.7 depends on qwave.dll, which is not available on Server Core
UE - Core - Cpp Tools - UnrealBuildAccelerator - Nov 19, 2025A licensee runs UbaAgent on Windows Server Core. This worked in 5.5 and 5.6, but broke in 5.7. After some investigation, they found that UbaAgent took a new (hard) dependency on qwave.dll in order ...
Hot Reload changes actor focus from a component to its root
Tools - Mar 10, 2015When a hot reload occurs in the editor, if the component of a placed actor is selected then focus will switch from the component to the actor's root. This can be confusing when the root is a code c ...