Unreal Engine Issues

Subsurface shading model is broken when ray traced shadows are used in 5.1+

Reflection Capture primitive invalidation in 5.3.1 causes massive hitches.

Nanite Mesh Dither Opacity Mask Not Working in 5.6.0

In Unreal Engine 5.5.4, the Dither Opacity Mask option in a Masked material works correctly on Nanite meshes. However, in version 5.6.0, the dithering effect no longer applies to Nanite meshes. ...

The visibility state of on-screen stat messages is not restored correctly after entering and leaving PIE. This also affects other important on-screen messages like map warnings and debug messages.

Currently, the ShowStats viewport option is automatically enabled when entering PIE and automatically disabled when exiting PIE. This forced disabling happens even if the option was enabled prior to ...

When 1 AnimSequence asset is used for multiple SeuqnecePlayer, the override by AnimGraphOverrides affects other than the specified SequencePlayer.

If you use the same AnimSequence in multiple SequencePlayers in Base AnimBP and replace asset of one of SequencePlayers by AssetOverride in Child AnimBP, the result will be reflected in the other Se ...

When exporting a level sequence (with its associated level) to USD, the asset paths for the reference are different from 5.5 and older

In 5.6, a referenced asset path looks something like         prepend references = @../../../../../Data/USD/Exports/FN-Main/ExportFolder/Assets/Sphere.usda@ instead of         prepend references = ...

5.5.3 insights crashes when opening .utrace files with "RenderCommands,RDG,RHICommands" channels.

The customer provided reproduction steps and a trace file that crashes Insights. From the customer: manually placing if (!CurrentGraph) Unknown macro: { return; } nullchecks in RenderGraphInsi ...

Shadow Maps performance issue with 5.4 in comparison towards 5.3

Shadow depths performance for non-VSM in certain scenes, notably those with rect lights and meshes that are set to movable, went from ~2ms to ~18ms going from UE 5.3 to UE 5.4. Setting the movable a ...

In UE 5.5, "Open Level By Name" is not able to find the map if the map is not added to "List of maps to include in a packaged build"

The "Open Level By Name" is not able to find the map to travel when the map is not included in the "List of maps to include in a packaged build" option. This issue was not happening in UE 5.3 and UE ...

Initial Modules are clamped to a 0 to 1 time range

The Initial Modules appear to be clamped to a zero to 1 time frame since 4.8 was released. Projects that are converted from 4.7.6 will have correctly working particle systems, but adding a new part ...