"Weld Simulated Bodies" Collision flips when welding Skeletal mesh to Static Mesh

UE - Simulation - Physics - Sep 20, 2019

Collision flipped when welding a skeletal mesh to a static mesh. Welding Skeletal mesh as parent actor does not cause collision to flip. Showflag.Collision 1 shows correct collision. (However px ...

Vertex Interpolator causes depth-test to fail

UE - Graphics Features - Apr 23, 2020

Vertex interpolator (semi-randomly) causes visual artifacts on meshes. This did not happen initially when using or creating this material function but started about 24 hours later but now happens st ...

Deleting folders in the Content Browser will not delete them permanently from Project Folder

UE - Editor - Content Pipeline - Content Browser - Mar 13, 2015

If you delete a folder from the Content browser that is in the Starter content, The folder will reappear if you reopen the project. The only way to delete them would be from Windows Explorer. I als ...

Blueprint Editor Layout is not properly saving

UE - Gameplay - Blueprint Editor - Oct 19, 2016

There are some weird things happening with layout recently, like UE-37541 which doesn't allow the user to save their layout, then reset it to the saved layout. Interesting thing to note is that wh ...

Cones for angular constraints not visible is Separate Translucency is disabled

UE - Graphics Features - Apr 14, 2016

A user reported an issue where the cones that represent angular constraints in the PHAT editor are not rendered if Separate Translucency is disabled. This may be related to another issue with Separa ...

AI Controller Remains in World Outliner After Being Destroyed

UE - AI - Apr 18, 2017

Destroying an AI Controller does not seem to remove it from the world. The controller will still remain in the World Outliner even after Destroy is called. Attempting to get the AI Controller after ...

Pressing f11 while playing in editor new window fullscreens the viewport in the editor

Tools - Sep 25, 2015

Pressing F11 (in attempts to fullscreen) while playing in editor - new window causes the viewport in the editor itself to full screen as opposed to the new window that's created. expectation is 1 o ...

Undoing pasting a component will crash ([CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::IsValid() [weakobjectptr.cpp:48])

UE - Gameplay - Components - Jul 20, 2017

This is a common crash affecting users in 4.16. The callstack is similar to [Link Removed], which was fixed in 4.13. User DescriptionsAccidentally duplicated a blueprint with multiple static mesh ...

Moving a Copy of an Actor from Persistent to Sublevel Dirties Persistent Level

Tools - Aug 18, 2017

Using Alt-Drag to move a copy of an actor from the persistent level to a sublevel (when the sublevel is selected as the current level in the Levels window), the persistent level is getting marked as ...

PostProcessSettings no longer has the Post Process Materials option

UE - Gameplay - Blueprint - Aug 29, 2017

In engine version 4.17 and later the Post Process Materials node is not present. This option allowed for custom Post Process Settings. Other nodes are still present and working as intended. This iss ...