Unreal Engine Issues
Unreal Engine Issues
Calling a native interface function implemented by a non-nativized Blueprint asset from a nativized Blueprint asset will silently fail at runtime.
UE - Gameplay - Blueprint - Apr 29, 2020In the sample project we have a Widget Blueprint asset (SomeWidget) that implements a native interface (PrintSomethingInterface.h). However, in the DefaultEditor.ini file, we've also excluded all Wi ...
Support Landscape Edit Layers in WorldComposition Import/Reimport
UE - LD & Modeling - Terrain - Landscape - May 6, 2020Allow user to enable layers when importing Landscape Tiles from the Level View in a World Composition Level. Allow to reimport that layer data on a Edit Layer later on when using the reimport featu ...
Cannot compile a nativized Blueprint with a function that takes an interface as an input parameter and uses it inside the function (e.g. dynamic cast to object).
UE - Gameplay - Blueprint - May 27, 2020Issue occurs because there is a legacy code path that forces all interface parameters to be declared as 'const' in function declarations, even if CPF_ConstParm is not set in exported C++ code. This ...
A Blueprint containing an array Swap node will fail to be nativized.
UE - Gameplay - Blueprint - Jul 17, 2020Blueprint assets that utilize an array "swap" node to swap elements cannot currently be converted to C++. Current workaround: Either avoid use of the "swap" node or exclude the Blueprint asset from ...
Missing reset to default buttons/arrows on "Object Responses" section of component collision profile response details customization
Tools - Jul 22, 2020The "Reset to default" button/arrow is missing from the channels listed in the "Object Responses" section of the Collision Preset details customization. ...
Package Map may clear out references to GUIDs on clients but not servers
UE - Networking - Jul 13, 2020Upon Seamless Travel, the Package Map will attempt to clear out "old" entries in the Guid Cache by marking them with a timeout. The only entries that will actually be marked for a timeout are entrie ...
Nativized blueprint does not support reading values from TRange structs
UE - Gameplay - Blueprint - May 10, 2021Compile errors will occur during packaging with Blueprint nativization enabled if e.g. "Get" nodes are placed in a Blueprint on FFloatRange struct types (or any other explicit TRange derivative) and ...
Editor becomes unresponsive for long periods between edits of a user-defined enum type when it's referenced by one or more user-defined struct types.
UE - Gameplay - Blueprint - May 17, 2021After adding a member to a user-defined struct type and changing the member type to a user-defined enumeration, repeated edits to that enumeration will eventually cause the editor to become increasi ...
Static mesh components spawned in the UCS along a spline require lighting to be rebuilt after a map reload.
UE - Gameplay - Components - Jun 17, 2021Seems to be somehow related to components being instanced in the Construction Script according to a spline. The transforms are slightly off by more than 1.e-2f. They are reconstructed on load with a ...
Include better comments/warnings for certain edge cases when using dependent actors with RepGraph
UE - Networking - Aug 17, 2021A recent UDN brought up two scenarios with dependent actors in RepGraph that could use better comments/warnings. The first is that calling ForceNetUpdate on an actor that is only replicated as a de ...