Unreal Engine Issues
Unreal Engine Issues
Pawn's role is incorrect in BeginPlay on client if a multicast RPC is called in BeginPlay on server
UE - Networking - Jun 6, 2022It seems as though calling a multicast RPC during BeginPlay on the server will cause the new actor to finish spawning on the client before applying any initial replicated data, such as the actor's R ...
Materials for certain groups appear black in Path tracer when Keep Hierarchy is used to import .skp files
TM - Interoperability - Mar 3, 2025Reported by a client in SF [Link Removed] When importing SKP files using the Keep Hierarchy collapse mode, some imported objects in Groups inside SketchUp will appear black in Path Tracer. Appears ...
FILTER_COMMANDLINE_LOGGING cannot be used without forcing UE_COMMAND_LINE_USES_ALLOW_LIST
UE - CoreTech - Jul 30, 2024There's two ways to affect the commandline in CommandLine.cpp: FILTER_COMMANDLINE_LOGGING - for filtering certain or all args (if left empty) from the log. UE_COMMAND_LINE_USES_ALLOW_LIST - for on ...
Datasmith Direct Link models relocate on sync
TM - Interoperability - Jun 3, 2024Reported by multiple users. Models imported through Datasmith Direct Link can be relocated after a sync, despite no edits to the geometry's location in the DCC program. Currently reported for both ...
Unable to locally rotate individual foliage
UE - World Creation - Worldbuilding Tools - Foliage - Jul 14, 2017Unable to locally rotate individual foliage. This seems to have been a limitation of the foliage tool from it's creation. Licensee Description: I would like to ask if there is any way how to preve ...
Integer Blueprint variables reset the Bitmask Enum setting when the Editor closes
UE - Framework - Blueprint - Feb 28, 2019User created Bitmask flag Enumerators are not correctly stored and retrieved from Blueprint Integer variable settings. When the Editor is restarted the value of the Integer's Bitmask Enum is set to ...
Translucent materials with Modulate blend mode disappear with down-res translucency enabled
UE - Graphics Features - May 28, 2024Reported from this UDN: https://udn.unrealengine.com/s/question/0D5QP00000MLlco0AD/active-dtr-doesnt-render-beforedofmodulated-materials?fromCase=1 The problem is that, except in very specific circ ...
Anamorphic Squeeze Factor causes a blocky Depth of Field issue on AMD Hardware
UE - Graphics Features - Jul 30, 2025When using the Anamorphic Squeeze Factor on a camera on AMD RDNA3 and RDNA4 hardware, blocking artefacts may be seen depending on the extent of the blur. The peripheries of the viewport appear to be ...
OnObjectPropertyChanged Firing Excessively when FText is Bulk Edited
UE - Editor - Jun 28, 2023If multiple game objects are selected at once and their text field is edited, instead of getting N events, it produces N-squared events. It looks like FPropertyHandleBase::SetPerObjectValue is call ...
Soft angular constraints solve velocity like hard constraints
UE - Simulation - Physics - Jul 17, 2025Soft angular constraints are solving velocity like hard constraints. Instead of swinging back and forth, the affected body just snaps to 45 degrees. Check the steps to reproduce for more details. Th ...