Unreal Engine Issues

Crash copying a Static Meshes primitive collision member and pasting it on another element

Crash copying a Static Meshes primitive collision member and pasting it on another element. The pasted element seems to need at least 2 members for the crash to occur. User description: Editor Cr ...

Rendering sequence with livelink data has issues with smooth engine offset

[Link Removed] for reference Playing back a sequence shouldn't have buffered samples. We should have a single one, which was built from the sequence. We need to make sure when played back that it ...

Layered Control Rigs + Skeletal Mesh with Animation Blueprint in the Sequencer

When a layered control rig track is added to the sequencer the character’s legs will collapse into the body of the character. Switching the layer to additive will do nothing. Trying to force the ani ...

Modifying the properties of a ChildActorComponent in a child blueprint can modify the parent actor ChildActorComponent properties.

When a property of a ChildActorComponent is modified in a child class, the parent ChildActorComponent class can also get modified. This happens when the Parent blueprint actor has a ChildActorCompo ...

If Skel Mesh Material Element order changes, Cloth assignments stay in the same order

If Skel Mesh Material Element order changes, Clothing assignments stay in the same order. I don't know if there's a way for the editor to interpret the material assignments on import, but this can ...

Level Streaming Blocking Loads Do Not Work

It is believed that If Should Block On Load is TRUE, the entire game should freeze up until the entire level is loaded. Then If Should Block On Load is FALSE, the game continues to play while the le ...

OnAudioPlacebackPercentage PlaybackPercentage (float) doesn't take into account "Start Time" from Play or FadeIn nodes

PlaybackPercent on the OnAudioPlaybackPercent event does not account for Start Offset from the Play or FadeIn node. Reported and tested in version 4.25.3 (CL-13942748) and version 4.24.3 (CL-115903 ...

Components attached to Camera doesn't receive late updates and "wobble"

Incorrect number of parameters in empty Shipping version of the DrawDebugString() function signature

The DrawDebugString() function has to versions. One is the actual function to display a string of debug text in non-Shipping builds, and the other is an empty function that is used in Shipping build ...

Crash on Mac for some 4.16 users while opening editor, related to Xcode

This is a common crash on Mac in the 4.16 release. The callstack is fairly generic , so it shares similarities with other Jiras such as [Link Removed] and [Link Removed], but this issue is differen ...