Unreal Engine Issues
Unreal Engine Issues
Validity of a workaround for an issue with MobileRenderer where RecieveShadow can't be rendered properly
UE - Platform - Mobile - Nov 11, 2024Dynamic instancing is likely causing an issue where meshes that need shadows are getting combined with meshes that do not need shadows causing missing shadows. Tests were done with CSMs. Reproducti ...
In editor, sub level instance's streaming state persists incorrectly after toggling Level Behavior without saving
UE - World Creation - Worldbuilding Tools - Level Instances - Jun 11, 2025When adding a sub level with world partition streaming to a main level where the streaming is also enabled, setting* Level Behavior* of the sub level to Standalone, and saving the result, in the fir ...
Linux crashes in the Project Browser without using the -nocef command
UE - Platform - Linux - Feb 22, 2022When opening Unreal Editor on Linux, the Project Browser opens but is completely unresponsive. Shortly afterwards the editor will crash. If you use the -nocef command when opening the Editor, everyt ...
If a user uses a binding to set the text of a Text widget by using the "Get Text" node on that same widget the editor will crash
UE - Editor - UI Systems - Aug 22, 2016The editor crashes when trying to set the text for a text block via a binding a if the text block is trying to set its text by referencing its current text setting. ...
game terminated on android device when connect or disconnect usb dongle
UE - Platform - Mobile - Jun 1, 2021The game crashed when the USB Dongle is connected or disconnected. Games that made by other engines are work fine. Refer to the attached video for the reproduce. ...
Adding "_API" specifier to FMovieSceneTrackEditor results in linker errors
UE - Anim - Sequencer - Feb 7, 2017Unable to add API specifier to FMovieSceneTrackEditor, results in compile errors (pasted in the callstack field) ...
Crash when calling SetState inside state machine OnUpdate
UE - Runtime - Anim BP - Sep 5, 2025The crash happens when SetState is called inside the function bound to OutputAnimationPose’s OnUpdate in the animation state. This way of using Set State node is the same as shown in the official do ...
Need to remove dependency on log2 on Android for older versions
UE - Platform - Mobile - Jun 27, 2017The log2 function does not exist in libc.so on older Android. Using FMath::Log2 instead solves the issue. ...
TeleportTo result with Chaos is different from PhysX
UE - Runtime - Simulation - Jun 25, 2021The result with Chaos is not wrong, rather it returns a correct correction vector, that vector is perfectly horizontal to the teleport buried against the landscape mesh. Therefore, teleportation wil ...
Crash on start on KitKat
UE - Platform - Mobile - Jul 24, 2019There is an unsupported call being made on KitKat causing a crash during startup. ...