Unreal Engine Issues
Unreal Engine Issues
The Editor "Show Frame Rate and Memory" does not display the intended output on macOS.
UE - Platform - Apple - Jan 11, 2023Repro Rate: 5/5 This is a live issue that has been tested in the Binary build of //UE5/Release-5.1 at CL 23058290 and DOES NOT OCCUR in Windows and Linux but DOES OCCUR in Mac. This was tested on d ...
VirtualHeightfieldMesh shadow issues
UE - Graphics Features - Apr 19, 2022A UDN reported ensure being encountered with VirtualHeightFieldMesh rendering on UE5. Those ensures remain an issue on 5.1 (UE5/Main) as of CL 19779838. [Link Removed] Attempting to repro on PC, th ...
Gameplay Ability System Attribute Modifiers with a duration (including infinite) do not respect tag requirements
UE - Gameplay - Gameplay Ability System - Feb 21, 2024When using infinite or duration-based effects, required and ignored tags will have no effect on attribute modifiers. This appears to be caused by OnAttributeAggregatorDirty (GameplayEffect.cpp:2917) ...
Different CRC32 Results for Repeated Hashing of UStaticMesh
UE - Foundation - Jul 15, 20241. Download the Licensee repro, compile, and open:https://udn.unrealengine.com/s/contentdocument/069QP00000CdN7WYAV 2. Press the first hatched button on the top bar, next to the Platforms dropdown. ...
Safezones on Android not set properly when orientation changes
UE - Platform - Mobile - Nov 5, 2024Looks like the resize that does the safe zone update is done before the orientation is updated. I suggested swapping the order to licensee in the UDN ticket and it worked for him. This should be t ...
[Niagara] Sampling static mesh location throws error
UE - Niagara - Feb 3, 2021Standalone window played from editor hits assert Index >= 0 in UObjectArray
UE - Gameplay - Blueprint - Sep 23, 2016Standalone window in editor will hit assert in a bit of time. Issue doesn't happen is playing standalone via Visual Studio. ...
Deleting static mesh that is used by foliage tool in content browser then selecting foliage window crashes editor
UE - World Creation - Worldbuilding Tools - Foliage - May 11, 2015If a static mesh is being used by the foliage tool and then deleted in the content browser, the foliage tool will retain a copy of the object and crash the editor if the foliage window is selected a ...
Memory Leak When Raytracing Enabled with Specific Rendering Settings
UE - Graphics Features - Ray Tracing - Apr 8, 2025When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...
Crash when converting non-WP maps containing landscape with OnlyMergeSubLevels enabled
UE - World Creation - Worldbuilding Tools - World Partition - Jul 21, 2023When trying to convert a non-WP map with OnlyMergeSubLevels enabled crash after a while ...