Unreal Engine Issues
Unreal Engine Issues
Engine Crashing with AMD R9 2 and 3 Series Cards
UE - Graphics Features - Sep 23, 2015Multiple users are reporting crashes in the Engine when using an AMD R9 380 and 390 series cards. There was a request to have these cards added to compat lab for testing, but have not heard any upd ...
Physics does not replicate for non root components
UE - Simulation - Physics - Dec 4, 2019A root component can be properly replicated, but non-root components won't have their collision replicated, only their visible mesh. ...
Tessellation used on BSP causes severe graphical glitches on AMD cards
UE - Graphics Features - Jun 3, 2015Tessellation used on BSP causes severe graphical glitches on AMD Radeon 200 Series cards. The Licensee also mentioned it occurs on the Nvidea GTX 970 (not tested) ...
Static, non-replicated actors have different role to dynamically spawned actors
UE - Networking - May 23, 2023For a non-replicated actor, the expected values for its local and remote roles would be ROLE_Authority and ROLE_None respectively. However, in ULevel::InitializeNetworkActors, ExchangeNetRoles(true) ...
Cook Non-Determinism in USplineComponent
UE - Editor - Feb 25, 20261. Non-Deterministic LastAuthority Serialization LastAuthority is assigned in USplineComponent::Serialize. Its value depends on the order in which the object and its archetype are serialized, leadi ...
Non-solid brushes have collision
UE - LD & Modeling - Modeling Tools - BSP - Sep 16, 2017REGRESSION: No Brushes set to non-solid still have collision with the player. ...
Crack Free Displacement is Flattening Displacement on Landscapes
UE - LD & Modeling - Terrain - Landscape - Nov 18, 2016If a user enables 'Crack Free Displacement' when using tessellation on landscapes, the displacement becomes flattened. This does not occur on regular static meshes, and seems to be tied only to land ...
Fix up IOS errors calling UI API from non-UI threads
UE - Platform - Apple - Jul 27, 2020Unreal Frontend output log is garbled if using non-ASCII language
UE - Foundation - Core - May 25, 2015If you set the editor language to a non-ASCII language like Japanese, Korean or Chinese, any localized strings that have non-ASCII characters will appear as "?" in the output of UnrealFrontend. [Im ...
USplineComponent::FindLocationClosestToWorldLocation does not function correctly with non-uniform scale
UE - Editor - Jul 19, 2022Licensee reports incorrect results with FindLocationClosestToWorldLocation when used with non-uniformly scaled spline components. ...