Unreal Engine Issues
Unreal Engine Issues
Proxy Table allows creating a Nested Chooser, but Edit does not open it
UE - Runtime - Animation - Nov 3, 2026A Proxy Table entry allows selecting Nested Chooser and creating an embedded Chooser Table. The new Chooser's name appears in the entry, but clicking Edit does not open it, preventing us from config ...
Mutable Make mesh - Higher level LODs meshes appearing in lower LODs
UE - Runtime - Mutable - Oct 28, 2026Due to 5.8 changes of the node Skeletal Mesh Make where it used to have the option of either automatically collect the LOD meshes from the Section skm or to use manually where it new to use the skm ...
Iris: CurrTimeMS in FReplicationReader::ResolveAndDispatchUnresolvedReferences saturates on ARM64, so unresolved handles never move to the cold cache
UE - Framework - Networking - Oct 23, 2026In FReplicationReader::ResolveAndDispatchUnresolvedReferences, CurrTimeMS is computed as static_cast<uint32>(FPlatformTime::Seconds() * 1000.0f). FPlatformTime::Seconds() includes GetSecondsTimeOffs ...
Missing textures on FBX import
TM - Interoperability - Oct 23, 2026Reported in SF [Link Removed] When importing some FBX files, the materials may be missing textures when using the Interchange importer. The attached model was created in Bentley Microstation as a . ...
BundledPSOs crash in 5.8 when trying to load .spc file
UE - Rendering - RHI - Oct 23, 2026POST LINK: https://forums.unrealengine.com/t/bundledpsos-crash-in-5-8-when-trying-to-load-spc-file/2746430 POST BODY:Summary Game packaging crashes at the PSO step. It worked fine in 5.7. I tried e ...
Crash when CharacterMovementComponent's CapsuleTouched processes overlap with a GeometryCollectionComponent
UE - Runtime - Character - Oct 23, 2026POST LINK: https://forums.unrealengine.com/t/crash-when-charactermovementcomponents-capsuletouched-processes-overlap-with-a-geometrycollectioncomponent/2763431 POST BODY:Summary When a Character's ...
Editor crash (unhandled assert) when changing blend mode on a material assigned to a Nanite static mesh
UE - Rendering - Features - Nanite - Oct 23, 2026POST LINK: https://forums.unrealengine.com/t/editor-crash-unhandled-assert-when-changing-blend-mode-on-a-material-assigned-to-a-nanite-static-mesh/2764048 POST BODY:Summary Changing a material's Bl ...
(Linux) - Editor crashes out when any change in project files
UE - Rendering - RHI - Oct 23, 2026POST LINK: https://forums.unrealengine.com/t/linux-editor-crashes-out-when-any-change-in-project-files/2733237 POST BODY:Summary Ue 5.8 Fresh install and basically fresh project. Any time Ue detec ...
FFT bloom disappears for some kernel/viewport size combinations (survey grid sized for R instead of 2R)
UE - Rendering - Features - Oct 22, 2026FFT bloom (convolution bloom) renders nothing for some combinations of kernel size, r.Bloom.ScreenPercentage and viewport sizes (e.g. 50% and 1024 x 768)Root cause PostProcessFFTBloom.cpp computes ...