Unreal Engine Issues
Unreal Engine Issues
UE4Editor does not start when there are no audio devices available
UE - Platform - Linux - Sep 26, 2018UE4Editor does not open when there are no audio input or output devices available. The editor hangs at 83% after it initializes the AudioMixer. This issue looks like it was caused by CL 4396954. Et ...
[CrashReport] Crash CheckForWorldGCLeaks() - EditorDestroyWorld()
UE - AI - Sep 8, 2017This is a somewhat common but longstanding Mac crash that has affected users since at least 4.13. Recently in 4.17.1, the crashes are all occurring in various ARKit projects User DescriptionsI add ...
iOS package with Metal Desktop Renderer enabled crashes on iPhone
UE - Rendering - Architecture - RHI - Oct 11, 2024iOS package with Metal Desktop Renderer enabled crashes on iPhoneThis issue does not occur if Metal Desktop Renderer is disabled ...
tvOS/IOS: Fails to Build with dSYM Options Enabled Due to DsymExporter Erroring Out
UE - Platform - Mobile - Jan 22, 2019When attempting to package for tvOS or iOS with the generate dSYM options enabled, numerous instances of the following errors occur:[2019.01.21-20.53.35:739][138]UATHelper: Packaging (tvOS): [2019 ...
Crash on PIE with varying number of players
UE - Networking - Jan 26, 2015User crashes on PIE when number of players is set to two in the "Play" drop down menu. No crash if number of players are set to 1,3, or 4. Additionally, setting the "Dedicated server" checkbox to ...
Users can create project with name of "Stack" which causes conflict with existing "Stack.h"
Tools - Sep 12, 2016Users can create project with existing name of "Slack" which causes conflict with existing Slack.h. Call stack is log file. ...
Using a Wait Delay node on Linux causes editor to immediately close without crashing
UE - Platform - Linux - Sep 14, 2015If a call is made to the blueprint node Wait Delay the editor will immediately close during PIE when the call is made without the crash reporter appearing. The "Wait Delay" node only exists on Linu ...
Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior
UE - Runtime - Simulation - Nov 21, 2024Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior. In the repro project provided (see addl in ...
Async Physics incorrectly interpolates when multiple physics ticks pass
UE - Runtime - Simulation - May 28, 2024If a user set the transform of a Body from the game thread and physics is running multiple async ticks perf game tick, the transforms might be being calculated incorrectly. ...
Users custom AI-heavy project crashes if anything is Built
UE - Gameplay - Feb 2, 2015Users custom AI project crashes if anything is Built. (All, Lighting, Geometry, etc.) The project can be played but receives a message during play that the Navmesh needs to be rebuilt. ...