Unreal Engine Issues
Unreal Engine Issues
Setting NavModifierVolume's AreaClass at runtime does not result in navmesh rebuilding
UE - AI - Apr 23, 2015The volume does accept the change and if it gets moved the navmesh will rebuild with new area set. The core issue is that setting NavModifierVolume.AreaClass at runtime does not notify navigation sy ...
Text block blurs when its render transform translation is changed from default to ex: [0.0x, 2.0y]
Tools - Sep 5, 2017When creating a new Widget Blueprint in a new project and adding a Text Block, the Text Block blurs when its Render Transform Translation Y-Axis is changed from default to ex [0.0x, 0.0y]. Regressi ...
Trying to set/change an element of a fixed-size TAssetPtr array in the Editor results in a crash.
UE - Foundation - Core - Dec 9, 2016Trying to set the value of an element of a fixed-size TAssetPtr array in the Editor results in the Editor crashing. This did not occur in 4.13. The attached callstack is from debugging the project ...
Wild card pins do not update when other pins on the same node have been used
UE - Gameplay - Blueprint - May 5, 2017Wild card pins do not update when other pins on the same node have been used. If the other pin on the inputs node is connected, the other wildcard pin(s) will no longer update back to wildcards if ...
Child of child blueprint cannot be altered from data only blueprint if called by a macro within a blueprint macro library
UE - Gameplay - Blueprint - Apr 11, 2016Spawning a child of a child blueprint in a blueprint macro library forces the child blueprint into opening as a data only blueprint without the option to open the Event Graph. Regression? (Yes), i ...
Attempting to Change Global Variable to Local Variable in a Function Containing a Timer Causes Compiler Error
UE - Gameplay - Blueprint - Sep 14, 2016When attempting to replace a global float variable with a local float variable that is connected to a Timer node in a blueprint function, an error will appear after trying to compile. This does not ...
Adding Elements to multiple Struct Arrays of a specific variable type is unreliable
UE - Gameplay - Blueprint - Aug 25, 2015Adding Elements to multiple Struct Arrays of variable 'Slate Brush' is unreliable. ...
Virtual Shadow Maps on Spot Lights cause a blocky presentation similar to an incorrect mip level
UE - Graphics Features - Shadows - May 26, 2025Spot Lights may present with very blocky shadow artefacts when a long attentuation radius is provided with a small cone angle. In extreme cases, this causes the VSMs to invalidate every frame. Notab ...
External reference error when trying to save Level Sequence Actor
UE - Anim - Sequencer - Feb 7, 2017External reference error when trying to save Level Sequence Actor after a change has been made. The error given is "Can't save ../../../.././../Users/YourUserName/Documents/Unreal Projects/YourProje ...
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. ...