Unreal Engine Issues
Unreal Engine Issues
[CrashReport] ispc_texcomp!<Unknown> - while launching to Android
UE - Platform - Mobile - Oct 25, 2017This is an early crash coming out of 4.18 that appears to occur when launching projects onto Android devices. It also seems frequently related to ARCore. User DescriptionsSo this is the example pr ...
Reimporting an FBX file via the import button does not make the import options appear
Tools - Nov 28, 2017Reimporting an FBX file via the import button does not make the import options appear. Instead of allowing the FBX to reimport with new options, the FBX just re-imports. This issue is a regression. ...
NetDriver time becomes unusable after long running sessions
UE - Networking - Jan 8, 2018This issue has been around for a long time (potentially UE3). UNetDriver::Time is a float, which is updated by accumulating Delta Time during ticks. This means the longer a game runs, and the highe ...
Crash upon opening packaged game when Event Driven Loader is disabled
UE - Foundation - Core - Apr 26, 2019Packaged games are unable to open when Event Driven Loader is disabled. The error message given is: Assertion failed: !Linker->GetSerializeContext() [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\C ...
Ribbon particles moving fast are inconsistent in initial position.
UE - Niagara - May 21, 2019The fast-moving ribbon particle trail looks different on the server and client. It looks as though the client was drawing the previous frame. ...
"Weld Simulated Bodies" Collision flips when welding Skeletal mesh to Static Mesh
UE - Simulation - Physics - Sep 20, 2019Collision flipped when welding a skeletal mesh to a static mesh. Welding Skeletal mesh as parent actor does not cause collision to flip. Showflag.Collision 1 shows correct collision. (However px ...
Vertex Interpolator causes depth-test to fail
UE - Graphics Features - Apr 23, 2020Vertex interpolator (semi-randomly) causes visual artifacts on meshes. This did not happen initially when using or creating this material function but started about 24 hours later but now happens st ...
"Navmesh needs to be rebuilt" error message while running a Listen Server and Client
UE - AI - Navigation - Mar 1, 2022Navmeshes produce a "Navmesh Needs to be rebuilt" error while running a Listen Server and a Client. ...
UDP Messaging causes extra network traffic on some network setups
UE - Networking - Oct 7, 2015A few users are experiencing strange network traffic from UDP Messagine. They notice it on other devices connected to the network. In some setups, it can even cause you to have cable TV interrupti ...
"Get Positional Tracking Camera Parameters" node does not return the correct values.
UE - Platform - XR - Dec 2, 2014When Using "Get Positional Tracking Camera Parameters" node it does not return the values for the pitch and roll of the camera. Also it only gives the yaw if the mouse is moved. ...