Unreal Engine Issues
Unreal Engine Issues
Static mesh material slots incorrect when upgrading project from UE4 to UE5
Licensee reporting material slots being incorrectly assigned when loading an asset created in UE4 into UE5 via an upgraded project. ...
Shadow Flickering with Lighting Channels
UE - Graphics Features - Shadows - Oct 27, 2023It looks like static meshes can invalidate large numbers of VSM pages when the geometry and the light are not on light channel 0. ...
Shadow in Sky Reflections
UE - Graphics Features - Lumen - Nov 10, 2023It looks like the DistantScreenTrace(...) in LumenScreenTracing.ush reports a false positive hit in the dark regions. Using screen trace visualization reports the distance in these regions as 65535. ...
DirectoriesToAlwaysStageAsNonUFS does not get remapped on IOS
UE - Platform - Mobile - Feb 29, 2016Niagara and Groom causes exception crash on Launch when using
UE - Simulation - Physics - Mar 2, 2020Trying a Launch after every step shows that the problem occurs as soon as the GroomAssetSystem is added to Niagara. If the GroomAssetSystem is removed, the game launches fine (but the hair doesn't m ...
AvfMedia: Many file types supported on macOS and iOS are reported as not supported in UE4
Media Framework - Sep 6, 2016See also https://forums.unrealengine.com/showthread.php?64082-Media-Framework-Roadmap&p=590662&viewfull=1#post590662 ...
FBSDSocket::GetConnectionState issues
UE - Networking - Feb 26, 2016https://answers.unrealengine.com/questions/336960/fsocket-problems-with-getconnectionstate-and-send.html We probably need to expose ability to override timeout. ...
Anim curves default back to 0.f instead of material default
OLD - Anim - Sep 13, 2017This seems to be a regression of [Link Removed]? Difficult to say. Originally reported here: https://udn.unrealengine.com/questions/391665/animcurve-parameter.html ...
New VR-Basic level triggers Metal validation layer assertion
UE - Platform - Apple - Mar 16, 2020This was discovered externally and reported on UDN here: https://udn.unrealengine.com/questions/563268/mac-editor-crash-when-disable-ambient-occlusion.html ...
AlwaysTickPose is prone to double firing notifies in a dedicated server setup.
UE - Characters - Animation - Jun 11, 2024See UDN for more info: https://udn.unrealengine.com/s/question/0D5QP00000MfU8l0AF/uanimnotifynotify-is-called-twice-for-the-same-notify-on-server-in-a-multiplayer-game ...