Unreal Engine Issues
Unreal Engine Issues
Source control syncing in editor will sometimes not update changes made to assets
Tools - Aug 25, 2015When using source control and attempting to sync the project, sometimes assets are not updated to the latest changes properly. This causes changes made to those assets later to override previous ch ...
Object Scale Not Working with Instanced Static Mesh
UE - Graphics Features - May 19, 2016Using Object Scale in your material with an Instanced Static Mesh does not change the color of the material if you scale the individual instances of the Instanced Static Mesh component. If you scal ...
After closing PIE, Right click dragging is confined to the Viewport bounds
Tools - Oct 27, 2017After holding any mouse button down and pressing escape to quit the game, using the right mouse button to move in the viewport locks it to the left and right bounds of the viewport. Sometimes moving ...
Duplicating a blueprint that implements an interface and then removing that interface will cause compile errors that don't occur if the interface was removed from the original BP
UE - Gameplay - Blueprint Editor - Aug 1, 2020See steps to reproduce. Looks like the fixup when saying Yes to "Would you like to transfer the interface functions to be part of your blueprint" doesn't work correctly on the duplicated BP. Inter ...
High Virtual Texture Sample/Lookup Cost when using a Virtual Texture in a Material Layer Blend
UE - Rendering Architecture - Materials - Mar 14, 2025Some Material Attribute blends in Material Layer Blends can cause Virtual Texture samples to be duplicated in HLSL. This can be avoided by sampling the Virtual Texture in the Parent Material, and pa ...
Using a Macro to access a variable from another Actor causes a crash in Standalone
UE - Gameplay - Blueprint - Jun 8, 2015Using a Macro to access a variable from another Actor causes a crash in Standalone. This does not seem to affect any other preview in editor, nor packaged games. Reproduced in 4.7.6, 4.8 Preview 4, ...
The Add node does not update in the Construction Script
UE - Gameplay - Blueprint - Feb 28, 2015The Add node does not update in the Construction Script. Reproduced in 4.7.1 binary and Main (//depot/UE4/Promotable-CL-2455917) ...
Particle record in the Matinee leads to crash when playing after record.
Tools - Oct 19, 2017Particle record feature in the matinee seems not properly working in the Editor. When trying to play in the matinee with recorded keys, the Engine will crash with Access violation - code c0000005. ...
Adding to Struct causes 'Inappropriate Outermost' warnings
UE - Gameplay - Blueprint - Jun 2, 2015Adding to Struct causes 'Inappropriate Outermost' warnings to be spammed to the Output Log ...
Increment and decrement nodes return the incorrect value
UE - Gameplay - Blueprint - Jun 23, 2015Increment and decrement nodes return the incorrect value User Description: Getting the result of the Increment Macro seems to be incrementing the variable twice. Very confusing. Is this normal? ...