Unreal Engine Issues
Unreal Engine Issues
Editor crash on Instanced Subobjects of an outer class in Class Picker
UE - Gameplay - Components - Aug 17, 2021Camera Shot Blend does not work when Reverse Play
UE - Anim - Sequencer - Feb 13, 2024Camera shot blending on Sequencer does not work when Reverse Play. If we place two cameras in a scene and just blend them by Camera Shot track in sequencer, the view point is interpolated between th ...
Crash when using CastChecked<>(nullptr, ECastCheckedType::NullAllowed) in configurations where checks are disabled
UE - CoreTech - Jun 19, 2025When using CastChecked<>(), the second parameter can be passed as ECastCheckedType::NullAllowed to make the check succeed when the input is nullptr. However, in UE 5.5 up to the latest engine versio ...
VALIDATE_UNIFORM_BUFFER_LIFETIME fails compilation
UE - Graphics Features - Jul 24, 2025Also verified on Release-5.5.4 CL 40574608 ...
Scaling multiple child components within a blueprint will cause their transform to malfunction
UE - Gameplay - Blueprint - Feb 17, 2016If the user scales multiple child components and tries to move them it causes exaggerated movement. ...
Using a user generated timeline in blueprint causes an exception in engine code.
UE - Gameplay - May 13, 2015This crash is caused by an exception that is thrown due to the functions inside of a blueprint based off a user-defined class that is suppose to mimic Timelines. ...
Instance Static Mesh element not rendered if array element is removed and another is added
UE - Gameplay - Dec 5, 2017Instance Static Mesh element is not rendered if array element is removed and another is added. The collision is still present and the instance count will still register as if the non-rendered elemen ...
Character Movement Mode in Water Volume is affecting all clients
UE - Gameplay - Player Movement - Dec 16, 2019Strange behavior concerning Character Movement Network Replication and a Water Physics Volume. Upon entering water volume, Character Movement mode is set to swimming, however if more than one clien ...
Rotate about axis material node can cause Z-fighting in Niagara mesh particles
UE - Niagara - Oct 21, 2020The rotate about axis material node appears to cause z-fighting in mesh particles if they are scaled in the simulation. ...
BP Component is not destructible if the Object Type is set during runtime
UE - Simulation - Physics - Destruction - Mar 16, 2015BP Component is not destructible if the Object Type is set during runtime. If the Object Type is set manually before PIE is started, the BP component will destroy correctly. ...