Unreal Engine Issues

Mesh vanishes on BP compile (components created by components issue)

When a mesh is declared in a custom component class and that component is added to an actor class, compiling a blueprint based on the actor class will cause the mesh set in the component to vanish i ...

Potential crash when an active timer removes itself from the ActiveTimers array

A licensee experienced a one-off crash that appears to be related to an active timer removing itself from the ActiveTimers array, leading to an out-of-bounds crash when we try to unregister it again ...

Hot reloading changes to a struct causes data table assets to break

If a data table asset is based on a custom struct, making changes to and hot reloading the struct will not update the data table in the editor. Restarting the editor will prevent the data table fro ...

Xcode build will fail if project has a file that was added by the Editor that contains a Copyright (©) symbol

Code class files created by the Editor that include the Copyright symbol (©) are created with UTF-16 encoding. This encoding is not supported by Xcode on Mac, and will result in a build failure. In ...

RPCs do not work in a class with no properties

NetFields are not initialized for classes without properties, preventing RPCs from working. Should just be a matter of removing the PropertyLink check in UClass::SetUpRuntimeReplicationData. See UDN ...

Character floats off of ramp when walking into a wall that is slightly sloped

Character floats off of ramp when walking into a wall that is slightly sloped. The wall angle is well above the walkable floor angle but the character seems to start walking up the wall regardless. ...

Distance Field AO not Rendering in VR

Distance Field Ambient Occlusion does not render in VR. I mentioned to the user reporting this issue, that using DFAO is more than likely disabled by default due to the baseline cost of using the ' ...

Child Blueprint Dirties parent when opening

An Actor with a child class component will cause the parent to become dirty by opening the child. Regression: This issue did not occur in 4.14.3 of the binary builds ...

Network profiler tool doesn't handle names with underscores gracefully.

The NetworkProfiler and UI tool assume that ActorNames are in the format <ClassName>_<ActorName>, and is not robust against underscores in either the class name or the actor name. However, given th ...

Blueprint function inputs can now be referenced as variables but renaming the inputs does not update the placed variable instances