Unreal Engine Issues

incorrect virtual texture shader code(in FinalizeVirtualTextureFeedback) on Mobile forward platform

in the function FinalizeVirtualTextureFeedback, the micro "USE_DBUFFER && MATERIALDECALRESPONSEMASK" returns true on mobile forward, while there is no DBUFFER on Mobile forward obviously. This takes ...

SingleLayerWater is rendering brighter shallow water with fog

Shallow water areas in scenes with exponential height fog will be brighter than they should be. Possibly due to the fog being applied twice in the SingleLayerWater shading model. ...

UMG property binding fixup for real numbers doesn't always work

For UMG delegates, we currently have a fixup pass that ensures that bound functions match the signature of the native delegate. However, the fixup appears to use the wrong function name, which cause ...

NV12 and NV21 pixel formats are not working correctly

Rifles are offset in Display 1.15 when opening Content Examples Animation map

REGRESSION: YesWORKING: 3172292 (4.13.2)BROKEN: 3177600 (4.14) In the Content Examples Animation level, at Display 1.15, the rifles are offset from the character's hands for two of the skeletal mes ...

Slow response on clicking on InstancedStaticMeshComponent with many elements when using IME

When clicking on InstancedStaticMeshComponent with many elements, Editor memory usage increases and editor freezes until the operation is finished. The wait and memory usage get much worse when usin ...

Latent Actions do not execute if the blueprint name contains non-english characters

REGRESSION: Issue started occurring with 4.25.4 Blueprints with non-English characters in their name will not trigger latent actions. The following warning appears in the log in this case: LogScr ...

Nanite compute materials don't work with VolumetricLightmap

Cannot Assign Clothing Asset after creating it

Cannot Assign Clothing Asset after creating it ...

NetMulticast and BlueprintCallable C++ functions reportedly have incorrect parameters

Bug report from AnswerHub. Need to figure out why C++ functions tagged NetMulticast and BlueprintCallable send the wrong paramters to some clients. ...