Unreal Engine Issues

MRQ - Skeletal Mesh motion vector are output only for the last sample of Spatial Sample Count

Skeletal Mesh motion vectors are output only for the last sample of Spatial Sample Count, while Static Mesh motion vectors are output in all samples. UDN: [Link Removed] Slack thread: [Link Remo ...

VRS Stereo Foveation is not working

Steam Sockets cannot create listen socket during non-seamless server travel

This seems to occur because the original listen socket is still around when the instance tries to create the new one, even though it has been marked for deletion. The issue does not occur when FStea ...

Temporal Super Sampling flickering temporal analysis visualisation mode indicates temporal analysis disabled for all objects on screen

This can also be observed while running in PIE mode using the console command "r.TSR.Visualize -2". It is not clear whether it is only the TSR flickering temporal analysis visualization that is exh ...

Shader info strings overlap in MaterialInstanceEditor and are unreadable

CL-35369646 changed the debug information string to span multiple lines, but the Y offset moves forward by only one line, so the string overlaps. ...

Material Parameter in Static Switch Branch of True Controlled by Quality Switch Not Showing Up in Material Instance Panel

In material editor, if a quality switch node is used together with a static switch to control branch, material parameters in the 'true' branch will never show up in the Detail panel of material inst ...

Blueprint function-local variable properties don't copy metadata from the source FBPVariableDescription

FKismetCompilerContext::CreateUserDefinedLocalVariableForFunction() does not copy the metadata from the source FBPVariableDescription entry. Class variables work because there is code for that in FK ...

Bitfield enums don't cast correctly in Blueprints

The licensee already investigated this a little. The problem appears to be that UKismetNodeHelperLibrary::GetValidValue should be calling IsValidEnumValueOrBitfield as opposed to IsValidEnumValue. ...

World Position Offset Object Shadow Cast on Translucent Object Causes Flickering

When a WPO (World Position Offset) object casts a shadow on a translucent object, the translucent object flickers continuously as the shadow passes over it. Initially logged as a 5.5/5.5.1 but also ...

Improper clipping in children of a retainer widget

Children of retainer widgets have improper clipping, causing any widgets set to "Clip to Bounds" to clip incorrectly. This may also affect hit testing in cases where multiple retainer widgets are ne ...