Unreal Engine Issues
Unreal Engine Issues
Crash when using ConstructorHelpers on Niagara assets
UE - Niagara - Apr 10, 2019When using the ConstructorHelpers templated function, FObjectFinder, with Niagara assets, the editor crashes. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5660361), 4.23 (CL - 5806860) ...
Niagara Sub UV Index ignored
UE - Niagara - May 16, 2019Using the Particles.SubImageIndex has no effect on what portions of the a UV are rendered in Niagara. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 6533064) ...
Niagara Map Set parameters are improperly named
UE - Niagara - Mar 9, 2020Parameters are misnamed when adding a new parameter to Map Set in a Niagara Module Script Tested: 4.23.1, 4.24.3 , 4.25 preview, 4.26 (main) ...
WrapBox->ForceNewLine() does not keep the slot on a new line.
UE - Editor - UI Systems - Slate - Apr 18, 2022Repro Ratio: 4/4 Regression testing done in //UE5/Release-5.0-EarlyAccess CL-16682836 as this is a new feature to UE5. This issue Also happened in Early Access 2. ...
Palette panel favorites category no longer stores more than 1 favorite at a time
UE - Editor - UI Systems - UMG - May 10, 2022This is a regression from 4.27.2 CL18319896 The favorites category within the User Widget's palette no longer stores more than 1 favorite at a time. Each time a new favorite is starred it replaces ...
LiDAR asset is distorted when reopening the level after closing it.
UE - Editor - Content Pipeline - Feb 15, 2023Found an issue with the asset in the steps to reproduce in //UE5/Release-5.2 CL 24238206 Perforce. When closing and reopening the project the asset in the viewer shows up as distorted. The issue occ ...
Widget that is a derived from a child widget reports component variables as Invalid
UE - Editor - UI Systems - Aug 23, 2023This is not a regression. Tested in //UE5/Release-5.2 CL26001984 A widget that is a derived from a child widget reports component variables as Invalid, while the child and parent of that child will ...
[AI] Area Class to Replace does not work on SplineNavModifierComponent
UE - AI - Navigation - Jun 16, 2025The SplineNavModifierComponent does not have the same behavior as regular nav modifier components where the modifier can specify that it only replaces a given NavArea class. Setting the area class t ...
Adding an Event Dispatcher to a Template Character Blueprint Causes Increase in Compile Time
UE - Gameplay - Blueprint - Jul 8, 2016Adding an event dispatcher to one of the pre-created character blueprints in the template projects causes an increase in compile times. This does not occur with a blank actor or character blueprint ...
Execute while paused input action mappings do not execute when console command pause used
UE - Gameplay - Input - Jul 28, 2016"Execute while paused" input action mappings do not trigger when using the pause console command. Workaround Use the "Set Game Paused" node, which works as expected. Regression (no) issue (does ...