Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Linux_PlatformCreateDummyGLWindow()
UE - Platform - Linux - Nov 16, 2017This is a trending Linux crash in the 4.18 release Callstack from Log[2017.11.10-14.42.41:021][ 0]LogLinux: Error: appError called: Assertion failed: [File:/media/***/OS/UnrealEngine-release/Engi ...
A C++ project with the name, "GearVR", will not build
UE - Foundation - Core - Jul 28, 2015A C++ project with the name, "GearVR", will not build. This does not occur with content-only projects named GearVR. In 4.7.6 and 4.8.2, it fails during Compiling and an error message appears: Runni ...
Sequencer - When a subsection has negative play rate, any nested sub-subsections fail to evaluate
UE - Anim - Sequencer - Jul 3, 2025Consider a sequence hierarchy with more than two layers. If the top-level sequence uses a negative timescale on a sub-sequence, the contents inside it animate as expected, but any nested sub-sequenc ...
Crash when changing a Play Node's "Sequence" to a Montage
OLD - Anim - Jan 20, 2016I understand that this is not something you're intended to be able to do (Montages aren't used this way), but we should bar the user from inserting a montage into this variable slot. Crash occurs w ...
[CrashReport] Assertion failed on Linux: SharedContext.hGLContext in OpenGLLinux.cpp
UE - Platform - Linux - Jun 16, 2017This is a top community crash occurring on Linux. The two linked CrashGroups have nearly identical callstacks. A log file is attached. Additional information is currently unavailable. Callstack f ...
Crash when compiling Blueprint Function containing a connected Set Variable node for a local variable named after a replicated Actor property
UE - Framework - Blueprint - Nov 5, 2025Creating a local variable inside a Blueprint Function with the same name as a replicated property of AActor (for example, “Role” or “RemoteRole”) and then using a connected Set Variable node for it ...
[CrashReport] Linux crash - FLinuxSplashState::InitSplashResources()
UE - Platform - Linux - Oct 27, 2017This is a trending Linux crash in 4.18. It seems to occur before a project loads. Callstack from Log[2017.10.27-08.31.13:659][ 0]LogInit: - Physical RAM available (not considering process quota) ...
Geometry Collection cluster handles leaking and causing ensures with field systems
UE - Simulation - Visual - Aug 26, 2025Geometry Collection cluster handles leaking and causing ensures with field systems. The licensee has shared their analysis: We have been tracking down an assert that seems to happen occasionally wh ...
The process may not return to the root node after the Wait Task is completed.
UE - AI - BehaviorTree - Sep 14, 2021If the Wait Task is completed for the first frame, it may not return to the root node even after Finish. This can be avoided by increasing the wait time of the Wait Task (see CaseOK.mp4). When this ...
World Source in Take Recorder does not record auto-tracked actors properly
UE - Virtual Production - Tools - Take Recorder - May 23, 2025The Take Recorder plugin allows for multiple sources to be recorded during gameplay. The World Source is expected to record everything in the level when the Autotrack Actors option is enabled. Once ...