Unreal Engine Issues
Unreal Engine Issues
Local lights appear broken when baking lighting with GPU Lightmass
UE - Graphics Features - Jun 2, 2025Encountered an issue where local lights appear to be broken when baking lighting with GPU Lightmass. See screenshots attached. Tested regression in //UE5/Release-5.5 @ CL40574608 and the issue does ...
Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited.
UE - Gameplay - Blueprint - Jan 8, 2019Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited. ...
Opening particle system crashes editor
UE - Graphics Features - Jan 27, 2016Opening a specific particle system crashes the editor. If the particle system is used within a level and the level is played, the editor will crash with no callstack. Logs are attached. Frequency: ...
User is able to merge a single actor
UE - Gameplay - Aug 5, 2016User is able to merge a single actor using the Merge Actor tool. This is a regression as you could not merge a single actor in 4.12. Not sure if this was an intended change or not. Occurring in 4. ...
Inaccurate updates to root widget visibility binding
UE - Editor - UI Systems - Apr 6, 2017Inaccurate updates to root widget visibility binding, so far in my testing, this does not affect the functionality of the binding. Regression: affects 4.13.2, 4.14.3, 4.15.1 binary versions ...
Attempting to add or alter custom functions in character blueprint crashes editor upon compile
OLD - Anim - Aug 27, 2015Editor crashes when adding or adjusting functions within character blueprint. Frequency: 5/5 Crashreporter: N/A Note: Does not reproduce on a new character blueprint, this seems limited to a cha ...
IOS force feedback strength does not increase
UE - Platform - Mobile - Jan 15, 2019Force feedback does not strengthen when expected on IOS. It stays the same regardless of where the pawn is on either the red or yellow squares. Tested on 9753_iPhone 7+ 12.0.1 and 16021_iPhone XS ...
Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child state.
UE - AI - StateTree - Apr 25, 2023This is a regression. Tested in //UE5/Release-5.1 CL2390901 The crash occurred 3/5 times. Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child ...
Camera Cuts lock doesn't work when simulating
UE - Anim - Sequencer - Jun 10, 2024Lock Viewport to Camera Cuts of CameraCutTrack stopped working from version 5.4 during PIE's simulation. This is a regression from 5.3 behavior where the lock remains when simulating. Locking to ind ...
The layer option for grid panels do not appear to be having an effect on draw order
UE - Editor - UI Systems - Feb 1, 2016It appears that users are unable to order widgets within a grid panel so as to set what widget that would like to be in the front. The layer option in the details panel says that it affects draw ord ...