Unreal Engine Issues
Unreal Engine Issues
Crash closing Parent and Child blueprint after renaming variable
UE - Gameplay - Blueprint - Oct 4, 2017REGRESSION Uncertain, was not able to repro in 4.17 with these steps. But I also can't repro with another version of QAGame in Binary editor. Crash occurs when the user closes a parent and child b ...
Editor crash in blueprint after compiling Post Process Settings node setings
UE - Gameplay - Blueprint - Nov 14, 2017Adding a variable of Post Process Settings structure to a blueprint causes the editor to crash when the blueprint is compiled. Regression: Yes - Editor did not crash on compile in 4.17.2 (CL 365890 ...
LevelSequenceActor transform offset for Sequencer lost on value changed
zComponent - Archive - Nov 17, 2025Toggling Lock, Pin, Ignore on subsequences or adding new transform key on a character inside a subsequence the Actors lose the LevelSequenceActor transform offset they have at preview and go back to ...
Render in Movie Render Queue with High Resolution Tiling Overlap causes dark pixels
zComponent - Archive - Jun 13, 2024From UDN: thanks for your reply. I have attached a very basic scene with a MRQ settings preset. The only thing I have changed in the scene is that I've set the Camera Exposure to manual, as it do ...
SignedArchiveReader may request wrong number of chunk blocks
UE - Core - Systems - Oct 25, 2022This problem is caused by an incorrect calculation of the number of chunks in the read request. Here is the workaround applied by the licensee : int64 FSignedArchiveReader::PrecacheChunks(TArray<F ...
Physics Constraint Actor: When plasticity is enabled, Drive Position Target is reset to zero on constraint initialization
UE - Runtime - Simulation - Mar 5, 2026When a Chaos joint constraint is first created, having linear/angular plasticity enabled will unexpectedly force its linear/angular drive position target to zero on initialization, disregarding the ...
SetDisableRetargeting does NOT work correctly for packaged project
UE - Runtime - Animation - Jan 4, 2023For example in cutscenes, the users use FBoneContainer::SetDisableRetargeting to temporarily use a specific shared animation without retargeting. But the function does not work correctly. We can fi ...
Saving a Slate Vector Art asset causes a crash
UE - AI Workflows - UI Systems - Mar 17, 2022Saving a Slate Vector Art asset causes a crash. ...
[AI] Using a Reference Value for scoring in an EQS test produces the opposite effect of its tooltip.
zComponent - Archive - Sep 23, 2022An EQS Query scores the tests using reference values opposite of how the comments and tooltips describe. It will score items closest to the referenced value lower than those further away, but the ex ...
Editor crashes if Sequencer has keyframes for a variable that has changed
UE - Anim - Sequencer - Sep 19, 2018The Editor crashes if loaded sequence has keyframes for an actor variable that has been changed, instead of soft erroring out. This was reported and tested on 4.20.3 (CL-4369336). It was reproduced ...