Unreal Engine Issues
Unreal Engine Issues
Virtual Texture does not stream high-resolution data when assigned as a UI material to a widget.
UE - Rendering - Architecture - Mar 23, 2026When a Virtual Texture is applied as a UI material, there is no associated geometry, so it does not explicitly request the loading of high-res virtual texture tiles. ...
Crash in Persona when adding Notifies
OLD - Anim - Apr 14, 2015REOPENED NOTES: Crash Reporter: [Link Removed] Test Project: [Link Removed] Open project and press Play: Editor will crash. User reports this being due to sequential animations not being the sam ...
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: ...
"Failed to Merge Bones" window can pop up repeatedly with no "...to all" option
OLD - Anim - Jul 6, 2015User is experiencing a situation where he gets this window 200 times and no way to get out of it with a single click. ...
Changing variable defaults in parent BP does not update changes in child
UE - Gameplay - Blueprint - Dec 9, 2014The changes made to the values for a transform variable setup in a blueprint will not show up in a child BP until the yellow arrows is pressed to reset to default. Other variable types update autom ...
External Reference Spam when converting projects to 4.9
UE - Foundation - Core - Cooker - Sep 1, 2015Map Check message log gets spammed with External Reference warnings when a project is converted to 4.9 from a previous engine version. These warnings don't seem to actually do anything to projects o ...
Project Launcher Back Icon Disappears when 'Use Small Toolbar Icons' is Enabled
Tools - Mar 31, 2015With 'Use Small Toolbar Icons' checked in the 'Editor Preferences', the 'Back' button within the 'Project Launcher' disappears. The expected would for the button to get smaller and not vanish entir ...
Material Function CylindricalUVs is missing the Object Position
Docs - Samples - Sep 29, 2014The Material Fucntion CylindricalUVs is missing the Object Position node ADDITIONAL NOTES: You can see the UVs wrapping around 0,0,0 without the position node attached, instead of the mesh's pos ...
Particle Sprites Location jumps when Engine delta time stutters
UE - Graphics Features - Feb 11, 2015Particle Sprites will jump forward in level when engine delta time stutters due to a instant pushed rendering queue. [Link Removed] ...
Crash on device When using 'shot' console command on a iOS metal device.
UE - Platform - Mobile - Apr 27, 2015When entering the Console command 'shot" on an iPhone 6+, the device will crash immediately. Tested on an iPhone 6+, iPhone 5 (8.1), and a Galaxy Note 10.1 Tablet. Unable to test on 2522625 becaus ...