Unreal Engine Issues
Unreal Engine Issues
Apple TV offline saves fix
UE - Platform - Mobile - Jul 31, 2019Offline save games don't work on Apple TV, (in fact all file operations fail) because Apple has decided that you can't store anything in the NSDocumentDirectory anymore. The fix is to replace occurr ...
"ShowFlag.InstancedFoliage 0" hides HISMC
UE - World Creation - Worldbuilding Tools - Foliage - Jul 29, 2020Hierarchical Instanced Static Mesh components that contain no foliage are disappearing when ShowFlag.InstancedFoliage 0 is used. This was reported and tested in 4.24.3 (CL-11590370) and reproduced ...
Fix rarely leaking Particle System Components
UE - Graphics Features - Jul 22, 2015User has found an issue in which Anim Notifies, spawning particle system components that cannot ever render will leak the particle system component. The user has a working fix but it's likely not i ...
Oculus mirror window goes black when headset removed for any mirroring mode besides 0
UE - Platform - XR - Nov 16, 2016If using any hmd mirroring mode besides 0 on Oculus, when the headset is removed, the mirroring window goes black in a packaged build, or in -game, for example: UE4Editor.exe VrTemplate4x15 MotionCo ...
Frame rate issues using Fixed Frame Rate and Matinee
Tools - Aug 10, 2016Frame rate issues using Fixed Frame Rate and Matinee. This could be similar to some issues involving "Force Fixed Frame Rate". ...
Cascade ParticleRelativeTime Outputs Constant 0 on Mobile
UE - Niagara - Aug 29, 2018Cascade ParticleRelativeTime outputs constant 0 on mobile. Found in 4.19 CL# 4033788, 4.20 CL# 4302132, 4.21 CL# 4321618 ...
Crash when Landscape Max LODLevel is set to 0
UE - LD & Modeling - Terrain - Landscape - Mar 16, 2018Reproduced in 4.19.0 CL 3944462 and 4.20 Main Unable to reproduce in 4.18.3 CL 3832480. This is a regression. ...
r.AllowOcclusionQueries 0 keeps increasing PrimitiveOcclusionHistorySet memory
UE - Rendering Architecture - RHI - Nov 29, 2022r.AllowOcclusionQueries 0 skips the call to TrimOcclusionHistory(), so the PrimitiveOcclusionHistorySet container continues to grow. ...
TAssetPtrs are not properly fixed up in client PIE instances
Tools - Aug 18, 2015Contrary to the linked UDN question, this doesn't seem to require the actor to be replicated. The problem is that when UWorld::DuplicateWorldForPIE is called for a PIE client instance's persistent ...
Integrate fix for improper failure case for allocation of RenderTargets in Oculus
UE - Platform - XR - Feb 6, 2017CL 3278583 contains a fix for improper failure state allocation of render targets, which causes intermittent crashes when the HMD is unplugged or has a power interruption. This CL fixes the crash ...