Unreal Engine Issues
Unreal Engine Issues
Crash in FPipelineFileCacheManager::RegisterPSOStats
UE - Rendering - Architecture - Oct 25, 2024The game can crash when one thread clears RunTimeToPSOUsage while another thread is expecting it to contain a PSO it is registering stats for. Thread A: calls CacheGraphicsPSO() Thread B: calls C ...
The visibility state of on-screen stat messages is not restored correctly after entering and leaving PIE. This also affects other important on-screen messages like map warnings and debug messages.
UE - Editor - UI Systems - Nov 28, 2024Currently, the ShowStats viewport option is automatically enabled when entering PIE and automatically disabled when exiting PIE. This forced disabling happens even if the option was enabled prior to ...
FDetailGroup::AddGroup does not correctly apply the default expansion state for DetailGroups
UE - Editor - Verse Class Editor - Feb 10, 2026There is a bug affecting DetailGroups in the engine. When adding child DetailGroups to a parent DetailGroup, the expansion state does not behave as expected and ignores the flags intended to control ...
RHIGetAvailableResolutions returns duplicate entries when bIgnoreRefreshRate is false
UE - Rendering - Architecture - RHI - Sep 17, 2015When the RHIGetAvailableResolutions function fills the array that is passed in as the first argument, it will end up filling some slots with duplicate resolutions (including refresh rate) when the b ...
Failure while Cooking FOutputDeviceWindowsError::Serialize()
UE - Foundation - Core - Cooker - Mar 19, 2015User receives an error while packaging. I haven't been able to reproduce this on my machine with templates I've created. Method to package: File > Package Project > Win64 The logs are attached. ...
Changing the mobility of an actor attached to a Skeletal Mesh in the level will change the mobility of the skeletal mesh
UE - Gameplay - Feb 16, 2016Items attached to the Skeletal Mesh in the World Outliner can alter the Mobility of the Skeletal Mesh. Licensee specifically does not want to have any automated changes to asset mobility to happen ...
Console window is locked when casting to the player controller
UE - Editor - UI Systems - Jul 13, 2015User has reported that access to the console window is locked when using this setup. ...
Material Parameter Collections are not working on Android v 5 phones from 4.11
UE - Platform - Mobile - Feb 9, 2016Material Parameter Collections are not successfully passing stored values into Materials when packaged for an Android Phone with an OS version of 5. Both version 4 and 6, correctly use the MPC.Test ...
Crash when applying force on event tick to DM
UE - Simulation - Physics - Destruction - Jun 19, 2015When using a DM and applying force via blueprints with event tick will cause a crash. Workaround: Using a timer instead will not cause any crash even with very low values. Crashreporter: [Link Re ...
Auto Convex collision generation doesn't work in some instances the accuracy setting
UE - Gameplay - Jun 18, 2015The new auto-convex collision generated (V-HACD) will not work properly with some meshes to generate accurate collision. Using a rounded single piece mesh the accuracy setting will not work at all ...