Unreal Engine Issues
Unreal Engine Issues
Integrate VirtualBones crash fix into next release patch
OLD - Anim - Jun 7, 2017Athomas reached out to me with a crash he was having when trying his 'Automatic Sync Marker AnimModifier' on a Skeleton that had Virtual Bones. It was verified that this only happens when Virtual B ...
Duplicating an inherited Blueprint float variable defaults it's value to 0.
UE - Gameplay - Oct 18, 2018When creating an Actor Blueprint (Testbase), and creating a new Blueprint Actor that inherits from Testbase (TestBP). We can drag an instance of TestBP into the World. If we go back into the Parent ...
Wrong density calculation in UBodySetup::CalculateMass
UE - Simulation - Core - Sep 29, 2025Wrong density calculation in UBodySetup::CalculateMass. The licensee has provided the following analysis and suggested fix: In UBodySetup::CalculateMass, the following code is present: // physical ...
Assertion trying to open packaged project on Linux: Default__MaterialInterface was listed as a fixed load order but was already processed
UE - Foundation - Core - Feb 20, 2017This might be related to [Link Removed]. ...
Mobile Previewer: Content Scale Factor 0 Issues
UE - Platform - Apple - Jul 13, 2021There are several reported issues with Save Zones displays in the mobile previewer when the Mobile Content Scale Factor is set to 0. When MobileContentScaleFactor is set to 0 a couple things hap ...
Fix BinkMediaTextureResource command list crash on UE 5.6
RAD - May 23, 2025Bink MediaTextureResource assets cause a graphics API crash, due to a missing UAV flag. The Licensee has proposed a fix to add the TexCreate_UAV flag. ...
Widgets always come in to viewport with a zorder of 0 after being removed and added back
UE - Editor - UI Systems - Apr 8, 2015If a widget is removed from parent and then gets added back to the screen later it will come in with a zorder of 0. ...
Changes to AActor::SetReplicates caused Role/RemoteRole replication fix to regress
UE - Networking - Jul 14, 2022There was a recent bug report that matched the description of some older cases (see linked UDN). The issue raised in those cases, [Link Removed], had been fixed, but the recent question seemed to in ...
LODBias causes landscape component to stop rendering if set >0 and Forced LOD set to -1
UE - LD & Modeling - Terrain - Landscape - Sep 12, 2016LODBias causes landscape component to stop rendering if set >0 and Forced LOD set to -1. NOTE If Forced LOD is set to 0, the component renders correctly. ...
Packaged projects do not render in web page using Safari 10.0
UE - Platform - Mobile - Aug 9, 2016My Macbook Pro uses an Nvidia GeForce 750M and was on Safari 10.0 when this occurred. This did NOT occur on a Macbook Pro with the same card and using Safari 9.1.2. This did NOT occur on an iMac wi ...