Unreal Engine Issues
Unreal Engine Issues
Performance hitch from RemoveGeometryCache flushing the render thread
UE - Editor - Content Pipeline - Alembic - Jun 12, 2025FGeometryCacheStreamingManager::RemoveGeometryCache calls FlushRenderingCommands which shows up as a hitch when profiling. [Link Removed] Ideally the flush added in CL#23782411 to fix a rare deadl ...
Casting to a child with a self reference can cause a crash
UE - Gameplay - Blueprint - Aug 13, 2015Casting to the child of a blueprint using the self reference (as the parent) throws a warning. Then placing a self reference anywhere in the event graph of the child by it's self will cause a crash ...
FFieldPath resolution doesn't handle redirection
UE - CoreTech - Feb 16, 2022A licensee has found that redirectors don't apply to FFieldPath. We should integrate it with the following changes:It needs better error handling (looks like it could infinitely recurse),The change ...
VR Preview crashes when the number of players is greater than one
UE - Platform - XR - Aug 18, 2015If the user has the number of players set to more than one, the VR preview will crash. ...
Crash when Opening the Class Defaults or Class Settings Tab within an Actor Blueprint
UE - Gameplay - Blueprint - May 19, 2015A crash occurs when attempting to open the 'Class Defaults' or 'Class Settings' tab of an Actor Blueprint. If the 'Details' tab is already open and you close it and attempt to reopen the options, th ...
Users are crashing on launch. D3D11 errors
UE - Graphics Features - Jun 23, 2015Users are experiencing this crash on launch. They all appear to have identical machines for the most part. They've tried different GPU's though. See the additional info URL [Link Removed] [Link ...
This project crashes with no crash report when a certain Blueprint is compiled
UE - Gameplay - Blueprint - Jan 28, 2015This user's project crashes with no crash report when its 'BP_Node' Blueprint is compiled. No crash report is generated and the log does not indicate a crash. Note: the project will not open after ...
Non-Local Players Cannot Hear Opponents Footsteps in Shooter Game
Docs - Samples - Dec 31, 2015Non local players cannot hear opponents footsteps and other various notifies, however, other sounds such as gunfire, etc. are present. Regression: User reports this issue is not present in the 4.8 ...
Level sequence updates more than once per frame when content editors are open
UE - Anim - Sequencer - May 27, 2016When content editors are open, they cause sequencer to be updated more than once per frame. This causes animations running in PIE to play faster than expected. Licensee provides code for a potential ...
Blueprint Implementable Events and Event dispatchers with the same name break the event dispatcher.
UE - Gameplay - Blueprint - Sep 22, 2015Creating an event dispatcher and BlueprintImplementableEvent function with the same names causes a signature conflict inside the blueprint. The event dispatcher is then broken as it cannot be delet ...