Unreal Engine Issues
Unreal Engine Issues
Separate out GameApplication onCreate additions always needed vs non-PSO processes
Separate out GameApplication onCreate additions always needed vs non-PSO processes by adding <GameApplicationOnCreateAdditionsAlways> for current case and moving <GameApplicationOnCreateAdditions> t ...
Non-public BlueprintCallable function calls do not compile in a nativized Blueprint.
UE - Gameplay - Blueprint - Jun 17, 2019A nativized Blueprint cannot currently invoke a non-public BlueprintCallable function that's defined in native C++ code without resulting in a C++ compile error. Example: APlayerController::PlayDyn ...
Incorrect Level Instance Bounds with non-trivial transform
UE - World Creation - Worldbuilding Tools - Level Instances - Mar 5, 2024From licensee: The streaming bounds of an instantiated level instances are incorrect in the world partition editor. When the bounds are computed for a level instance during FLevelInstanceActorDe ...
Spatialization no longer occurs when Non-Spatialized Radius is set above 0
UE - Audio - Sep 13, 2016Audio spatialization no longer occurs when Non-Spatialized Radius is set above 0 in a sound actor (instance or in a sound cue). I could not reproduce this issue in UE4/Main. ...
PHAT Mass Properties don't account for COM offset and Physical Material changes
UE - Simulation - Physics - Oct 17, 2019Changes in an applied physical material are not automatically picked up by the PHAT mass properties display. A manual refresh is required for the display to update to the correct values. Adjustin ...
Nanite Landscapes in Non world partition maps has missing sections
UE - Graphics Tools - Terrain - Landscape - Jul 23, 2025Nanite in non world partition worlds builds with missing section, almost half the landscape is missing. Looking at the nanite overdraw as attached, it shows an interesting pattern. ...
Iris - RPCs split into partial blobs aren't received on non-replicated components
UE - Networking - Iris - Aug 5, 2025This issue does not occur if the RPC is not split into partial blobs. The RPC is received on the non-replicated component if Iris is disabled. ...
Extracting Sprites from Padded Non-Power of Two Textures are Offset
UE - Gameplay - Paper2D - Oct 12, 2015Extracted Sprites are offset when importing a non-power of two sprite sheet, padding it to a power a two mode, and then using the extract function. You can see this offset clipping of the extracted ...
Linux Vulkan editor crashes OOM on older graphics cards
UE - Graphics Features - Oct 19, 2018Vulkan editor is very crashy on older cards due to memory pressure. I have to switch to OpenGL to work on the unrelated bugs. I'm attaching the details of the particular failure I had (see VulkanMe ...
Distance Fields do not work with Directional Lights when using a AMD Radeon card.
UE - Graphics Features - Aug 25, 2015Distance Field shadows do not appear to be working with those using Radeon series cards. Sample project attached DXDiag of machine that is having the issue is attached. AMD Radeon 200 series. ...