Unreal Engine Issues
Unreal Engine Issues
Command buffer failure rates increased on iOS 15 devices compared to earlier iOS versions
UE - Rendering Architecture - RHI - Sep 23, 2022There is a licensee report that command buffer failure rates on iOS 15 devices have increased compared to earlier iOS versions, and the issue may be related to foregrounding or backgrounding. ...
Blend Space Graph node doesn't display fast path icon
UE - Anim - Runtime - Anim Blueprints - Sep 22, 2022Because SGraphNodeBlendSpaceGraph inherits from SGraphNodeK2Composite rather than UAnimGraphNode_Base as with most anim nodes, we aren't able to make the check as to whether the node is fast-path co ...
[AI] Debug Render Scene Proxy hits ensure for registering a delegate twice during level streaming.
UE - AI - Debugging - Aug 31, 2022Description from licensee: We're seeing an ensure get tripped up in FDebugRenderSceneProxy that says "DrawDelegate is already Registered!". Debugging the issue, we have confirmed that the DrawDeleg ...
Pose watches don't display correctly with compatible skeletons
UE - Anim - Runtime - Anim Blueprints - Aug 19, 2022"Hello, we've found a quirk with ABP's pose watch and compatible skeletons. Same setup as above. We have skeleton A as the base and skeleton B as a compatible skeleton. They both share similar hiera ...
[AI] Navmesh does not generate correctly on a negatively scaled ISM.
UE - AI - Navigation - Aug 16, 2022Setting a single axis of an ISM negative results in navmesh not being generated on top of it. However, setting 2 axes to negative scale does have the navmesh generate as is expected. Also see more ...
Physical Material Masks do not work in non-editor builds
UE - Simulation - Physics - Aug 12, 2022Physical material masks are not working as expected in cooked builds. Licensee reports that the mask data is empty at runtime. ...
Crash when loading Anim BP after undoing and saving "Use Shared Rule" in state machine
UE - Anim - Runtime - Jul 19, 2022Reported by UDN [Link Removed] From Slack discussion: It seems that undo-ing the transaction in UAnimStateTransitionNode::UseSharedRules, leaves the outer graph (UAnimationStateMachineGraph) wit ...
FPlatformMisc::RequestExit freezes app in IOS
UE - Platform - Apple - Jul 12, 2022See the UDN question (duplicated below). I think we need to better manage the lifetime of the event we use for synchronization here. We are experiencing an issue where when FPlatformMisc::Request ...
Physics Constraint returns incorrect values for Swing1, Swing2, and Twist
UE - Simulation - Physics - Jul 7, 2022Tested in //UE5/Main CL#20966071 Tested in //UE4/Release-4.27 CL#18319896 Physics Constraint returns incorrect values for Swing1, Swing2, and Twist. ...
Resizing panels causes ghosting/shifting of contents during drag
UE - Rendering Architecture - RHI - May 13, 2022Resizing the editor window or any floating panel causes the panel contents to jitter during drag. See attached images. The jittering one is from Main and the normal behavior was captured in UEFN. ...