Unreal Engine Issues
Unreal Engine Issues
Video Texture thumbnail does not update after you change its output track
Media Framework - Mar 2, 2017When updating a video texture's output track, the player preview and world will update immediately, however the texture's thumbnail will revert to default color: Black. When moused over, the thumbn ...
uncaught exception: out of memory after launching project onto HTML5 (32-bit browsers)
UE - Platform - Mobile - Mar 20, 2017First person template project is struggling to run on Firefox 32-bit Version 52.0.1 and eventually throws an "uncaught exception: out of memory" error. Occurs in both BP and C++ projects. May be a ...
Character Mesh Position Offset in Online Sessions
UE - Networking - Jun 12, 2017If a client joins a session while the host is moving their character, the character's mesh will become offset on the client. Example Video: [Link Removed] Found in 4.16.1 and reproduced in 4.17 M ...
[CrashReport] Tutorial crash UObject::execLetValueOnPersistentFrame()
UE - Gameplay - Blueprint - Jul 7, 2017This is another Tutorial crash that shares a similar callstack with [Link Removed] and [Link Removed], but those specific repro steps have been fixed while this one is still occurring in 4.16.2. On ...
The vertex color becomes red when importing a static mesh without Color Set
Tools - Aug 28, 2018It seemed to be white at 4.19, but it seems to be red at 4.20. I found out that there seems to be a cause for initialization of Mesh Attributes. As a result of fixing this, it is now displayed in wh ...
Niagara GPU particles will always have a lifetime of one second if they use a Collision Module
UE - Niagara - May 2, 2019GPU Particles will always have a lifetime of one second when using a collision module. This is a result of an issue with how off screen timing is handled. GPU particles that are off screen should on ...
Niagara Crash : ExportParticleDataToBlueprint module causes buffer overrun
UE - Niagara - Aug 10, 2021This buffer overrun is probably caused by the ExportParticleDataToBlueprint module does not respecting the GPUAllocation Fixed Size setting in the module. In fact, out-of-range export data is not c ...
Marketplace plugins "missing precompiled manifest" on Mac
UE - Platform - Apple - Oct 12, 2021Summary This issue was reported by a licensee via UDN. It appears that all of the plugins generate a "missing precompiled manifest" error when packaging a project on Mac in UE4.26.2.Licensee Platfor ...
Atmosphere related scan line artifacts for Path Tracer with MGPU
UE - Graphics Features - Path Tracer - Feb 10, 2023There are two UDNs related to this issue. It makes the Path Tracer unusable with MGPU, with atmosphere enabled. I already have a one-line fix implemented and tested. The atmosphere scan line arti ...
Ensure in GatherSubobjectData
UE - Gameplay - Nov 27, 2023An ensure in GatherSubobjectData is being hit under certain inheritance conditions. This appears to be similar and potentially related to [Link Removed] and the fix at CL 16377852. Stepping through ...