Unreal Engine Issues
Unreal Engine Issues
Line trace fails to detect Destructible Mesh
UE - Simulation - Physics - Destruction - Jun 15, 2015When using a line trace in the construction script so that objects can return a value destructible meshes will not return a hit. This does not affect use in game with PIE or Standalone game, but if ...
"NO ASYNC TICK" in Cascade viewport when adding a Skel Vert/Surf Location
UE - Niagara - Nov 7, 2019Adding a Skel Vert/Surf Location node to a Particle Effect causes it to stop displaying particles and throws the warning "No Async Tick". Toggling Skel Vert/Surf Location off allows the Particle to ...
Local fog volume rotation causes offset issues at high world position values
UE - Graphics Features - May 20, 2024Local fog volumes have a substantial offset when placed at a far distance from world origin and is then rotated. This was not the case in 5.3 when tested under the same conditions, so this is likely ...
bStaticWhenNotMoveable in Lighting category instead of Physics
UE - Simulation - Gameplay - Oct 24, 2025"UPrimitiveComponent::bStaticWhenNotMoveable"'s category is set to Lighting, not Physics. This causes it to be hidden when lighting-related properties are hidden, even though it controls physics sta ...
Attempting to connect to Perforce source control causes a crash
Tools - Oct 16, 2015Selecting Perforce from the list of source control options will cause the editor to crash. Crash Reporter [Link Removed] May also be the same as: [Link Removed] REGRESSION? Yes. Issue did not occ ...
Modifying FSuggestProjectileVelocityParameters::ResponseParam.CollisionResponse modifies FCollisionResponseParams::DefaultResponseParam
UE - Simulation - Core - Sep 17, 2024FSuggestProjectileVelocityParameters was introduced in 5.4 and has a FCollisionResponseParams member that's initialized as a mutable reference to FCollisionResponseParams::DefaultResponseParam. str ...
Setting an overlay's alpha to 0 does not display as fully transparent
Tools - Feb 19, 2020Safe zone overlay ignores alpha when set to 0.0 in DefaultEngine.ini. Tested: 4.23.1 CL#9631420 , 4.25 CL#11341939 ...
Virtual Joystick inactive opacity ignored when Prevent Recenter is on
UE - Platform - Mobile - Nov 30, 2016Using a touch interface with Prevent Recenter set to true prevents the joysticks from fading to their Inactive Opacity setting. Regression?: No This also occurred in 4.13.1 ...
Child actor components cannot be individually selected in viewport
UE - Gameplay - Blueprint - May 28, 2015If a child actor component is placed in a blueprint, that child actor component cannot be individually selected in viewport or scene outliner. ...
Crash when changing the number of instances in a grouped sprite component at runtime
UE - Gameplay - Paper2D - Aug 4, 2016A crash occurs when you remove a Sprite Instance within a Paper Grouped Sprite component of an Actor BP on Event Begin Play. I was able to reproduce this crash in the binary releases of 4.11.2 and ...