Unreal Engine Issues
Unreal Engine Issues
STAT_AI_BehaviorTree_InstanceMemory is sometimes wildly inaccurate
UE - AI - Jun 10, 2020From the UDN thread: Turns out this is caused by the way this stat was implemented for the FBehaviorTreeInstance struct: 1) You call IncMemoryStats on construct, before the struct is populated with ...
Crash on startup with a Blueprint deriving from an abstract class with a SpriteComponent
Tools - Feb 7, 2018Appears to be an issue with load order and the timing of when we populate the 'ShowSpriteCommands' and 'SpriteIDToIndexMap' containers, which we assert on if they're not the same size. The original ...
The Unreal Engine building dialog either does not appear or is only visible for a brief second
UE - Virtual Production - Nov 18, 2022This is not a regression against 5.0. Tested in //UE5/Release-5.0 CL20979098 However, as users have pointed out, this is a departure from UE4. The same process in 4.27.2 demonstrates the building d ...
Actor Soft Reference in LevelInstance does not have a Referenced Object during PIE
UE - World Creation - Worldbuilding Tools - Level Instances - May 30, 2023When setting an actor on a level to the SoftObjectRefence(Type:Actor) variable and outputting the object name as a PrintString, the object name cannot be correctly obtained if the set actor is place ...
[CrashReport][Assert] UnrealEditor-D3D12RHI!FD3D12ResourceLocation::ReleaseResource() [Engine/Source/Runtime/D3D12RHI/Private/D3D12Resources.cpp:1392]
UE - Rendering Architecture - RHI - Oct 22, 2024Users affected: 73 Total occurrences: 156 Last occurrence: October 22nd 2024, 9:59:58 am First occurrence: October 2nd 2024, 4:53:30 pm Latest version: ++UE5+Release-5.5-CL-36679577 Platform: Win64 ...
Target Points are changing locations within World Partition Maps Shipping Build
UE - World Creation - Worldbuilding Tools - World Partition - Sep 19, 2023Target Point Actors are changing location when in a World Partition Map within a Shipping Build. This does not occur in Non World Partition Maps. The name of the Asset also changes when in a World ...
[CrashReport][GPU Crash] NodeAndClusterCull
UE - Graphics Features - Nanite - Nov 19, 2024Users affected: 51 Total occurrences: 90 Last occurrence: November 19th 2024, 3:25:41 am First occurrence: August 7th 2024, 8:10:10 pm Latest version: ++UE5+Release-5.5-CL-37670630 Platform: Win64 [ ...
Pathtracer - Odd results from any material adjusting normals to complement world position changes
UE - Graphics Features - Path Tracer - Sep 30, 2025Someone on the forums is reporting a possible bug with Pathtracer and any material that adjusts normals to complement world position changes. See pic attached. Reporting forum thread:https://foru ...
Crash When Opening a DataTable Based Off a Struct With a Timecode Variable
UE - Anim - Sequencer - Mar 30, 2020When a datatable is based off a struct with a timecode variable it will crash when opening. Found in 4.24.3 CL#11590370 Reproduced in 4.23.1 CL#9631420, 4.25 Preview 4 CL#12366721, 4.26 CL#12123513 ...
On level restart, user receives LogNetPackageMap warnings in networking project with seamless travel
UE - Networking - Mar 19, 2015On level restart, user receives LogNetPackageMap warnings in networking project with seamless travel. Warning message: LogNetPackageMap:Warning: Using None instead of replicated reference to MyAct ...