Unreal Engine Issues
Unreal Engine Issues
CommonUI Analog Cursor + Enhanced Input triggers cause triggers to get stuck when alt-tabbing
UE - Editor - UI Systems - Mar 29, 2024Came out of [Link Removed] and is related to this one too I think that this is signaling that we need better solutions for input consumption in the engine honestly. This is a constant pain point ...
[Interchange][gltf] Imported animation are all 1 frame long.
UE - Editor - Content Pipeline - Import and Export - Jan 27, 2025All the imported animation only contain one frame. If the file contains in archive are imported in a gltf web viewer we can see animation are playing. [Link Removed] [Link Removed] https://foru ...
Child widgets do not maintain the Enhanced Input bindings from their parents
UE - Gameplay - Input - Apr 9, 2025Test content for this bug is in the /EnhancedInputTesting/UE_268605/EnhancedInput_UE268605 level in QAGame! When a widget blueprint is created with Enhanced Input bindings in the event graph, whe ...
ARKit GetCurrentFrame crashes app
UE - Platform - XR - Aug 22, 2018Using "GetCurrentFrame" crashes app. "The crash is due to the default constructor of FAppleARKitFrame being called by the above mentioned blueprint function. That constructor fails to initialize fi ...
UMG Designer preview: Incorrect resolution on Samsung s8 and s9
UE - Editor - UI Systems - Jul 30, 2018"By default, the device profile for android_high (which is used by phones such as the galaxy s8 and s9) gives a scale factor of 1.0 resulting in 1280x720. When choosing a ~2:1 device such as the gal ...
Actor corruption due to Hierarchy broken after load
UE - World Creation - Worldbuilding Tools - World Partition - Apr 25, 2023We recently hit a situation where some actors would suddenly teleport across the map when they were modified in the editor. We figured out that the AttachParent of some actors got reset on editor l ...
[CrashReport] UE4Editor_BlueprintGraph!BlueprintActionFilterImpl::IsEventUnimplementable() [blueprintactionfilter.cpp:588]
UE - Gameplay - Blueprint - Jun 1, 2016This crash has been reported through the 4.12 Previews and is continuing to occur in the 4.12.0 release. Additional information about this crash is not available at this time, however it may be the ...
NDisplay hangs and stops responding on cluster event send
UE - Virtual Production - nDisplay - Nov 12, 2019"The test event is set up using the default CE port, but every time an event is sent through the launcher the display receives the input and processes it, however the launcher will "hang" and stop ...
Imported Substance materials behave incorrectly when applying UV rotation
TM - Tools - May 14, 2026Reported in SF [Link Removed] and on the forums at https://forums.unrealengine.com/t/substance-3d-materials-not-reflecting-light-properly/2718611 UV rotation behavior is incorrect for Substance mat ...
Crash when enabling HZB occlusion culling
UE - Graphics Features - Dec 16, 2020Enabling HZB Occlusion culling results in a reproducible crash. Looks like a community member noticed this back in preview 2: https://forums.unrealengine.com/unreal-engine/announcements-and-release ...