Unreal Engine Issues
Unreal Engine Issues
Rare assertion comes up when cooking if sequencer camera track has only additive transform track
UE - Anim - Sequencer - Mar 2, 2020If a camera track has only additive transform track, some functions return uninitialized F3DTransformTrackToken made by default constructor. It causes a rare assertion. Please take a look at F3DTra ...
D3D device being lost ( DXGI_ERROR_DEVICE_REMOVED ) on both D3D11 and D3D12
UE - Rendering Architecture - RHI - Aug 10, 2020It is hard to reproduce, but a licensee reported in UDN that it crashed on his computer frequently. He provided two crash dumps with logs which I uploaded here.[Link Removed][Link Removed] OS: W ...
Undo function breaks local variables in Blueprint Function after compiling
UE - Gameplay - Oct 8, 2020Blueprint functions appear to correctly associate local variables when renaming the function. However when undoing a rename with ctrl-z the local variables appear to lose their association. Redoing ...
Widget Blueprint breakpoints hit during a Tick event do not engage the debugger.
UE - Editor - UI Systems - Jun 13, 2024The user comment on the Salesforce issue " This is a regression from the behaviour in 5.3.X, and I've reproduced it in 5.4.0, 5.4.1, and 5.4.2. The specific issue/change that caused this regression ...
FCableSceneProxy::BuildCableMesh thrashes memory allocator
UE - Simulation - Physics - Feb 12, 2025FCableSceneProxy::BuildCableMesh in CableComponent.cpp:233 showed up as a hot spot in profiling because the two TArray allocators in SetDynamicData_RenderThread used by BuildCableMesh are created an ...
Trigger Volume Blocks First-Person Template Projectile
UE - Simulation - Physics - Nov 2, 2015When playing in editor, if you fire your weapon at a trigger volume, the projectiles will bounce off of the volume, regardless of the fact that the collision is set to Query Only. This collision als ...
Ease node "Shortest Path" auto sets to true after closing and reopening editor
UE - Gameplay - Blueprint - Mar 9, 2015UPDATE: 3/10/2015 User reported manually adding a separate boolean value causes that value to automatically switch to true upon reloading editor as well. No current workaround is available. ======= ...
Children of a Blueprint Class not Available in the Default Value Dropdown for a Variable of that Class
UE - Gameplay - Blueprint - Jan 5, 2016Creating a blueprint class, and then creating a few children of that class ( in this case, 4) does not display them as available options when setting the default value of a variable of that blueprin ...
Deleting a Struct Attached to a Variable in a Blueprint Prevents it from Compiling
UE - Gameplay - Blueprint - Oct 20, 2015Adding a variable of the type of a struct to a blueprint, deleting that struct, and then recompiling the blueprint fails. The variable is deleted, but the blueprint will continue to be unable to com ...
editor crashes when variable inside of a struct is set to a class type then the object is moved to a new folder
UE - Gameplay - Blueprint - Mar 17, 2015If a struct has a variable set to a class type, then the object of that class type is moved to a new folder in the editor, the struct will replace the class type with "class", which causes the edito ...