Unreal Engine Issues
Unreal Engine Issues
UMG does not show up in viewport on HTML5 platform
UE - Platform - Mobile - Apr 27, 2016Text UMG isn't showing up on HTML5 when it's packaged and ran on the browsers. This has only been seen on HTML5 so far. ...
LIVE: The Now node (FDateTime::Now) does not return the correct time
UE - Foundation - Core - Nov 18, 2014The 'Now' node does not return the correct time if ran through a 'Print String'. (NOTE: However, the 'Utc Now' node does return the correct time.) ...
Mutable compile hangs indefinitely when using Customizable Object Extension Data Constants
UE - Anim - Mutable - Oct 25, 2025I am getting a CO compile to hang indefinitely while compiling. It seems to be caused by the optimization in LocalLogicOptimiserAST that tries to convert 3+ conditionals into a switch statement. It ...
promoting a variable to a local variable in another blueprint creates compile error.
UE - Gameplay - Blueprint - Sep 30, 2015If a local variable set variable is copied/pasted over to a second blueprint and the input pin is promoted to a local variable, compiling the blueprint will cause a compile error to appear until the ...
Start up movies will only play for a second or two and then the level will load.
UE - Platform - Mobile - Oct 27, 2014If you place a mp4 file into the startup movies section of the Project Settings, the movie will only play for a brief time before the level loads. If you play the play the level with the startup m ...
Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor
UE - Gameplay - Aug 11, 2016Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor. This seems to be linked to which physics asset is currently assigned to the skeletal me ...
Crash in FObjectReplicator::StartReplicating when removing replicated uproperty and hot reloading with two players
UE - Networking - May 10, 2016The editor crashes when the user removes the replicated uproperty from a variable and tries to hot reload while a PIE session with two players is still active. This issue was found while trying to ...
The Open Level command is causing Android devices to freeze up
UE - Platform - Mobile - Dec 1, 2014If you use the Open level node in the newest promoted build, once the project is deployed to an Android device, when triggered with a UMG, the project will freeze and be unplayable. Issue does not ...
Distant mesh / vista have visible Lumen bounces
UE - Rendering Architecture - Jun 15, 2024Objects far outside of the Lumen Scene don't temporally accumulate screen traces, leading to heavy flickering. It appears that the temporal reprojection is failing when comparing the depth in "Scree ...
Nested component subobject visualization and defaults editing is not working properly.
UE - Gameplay - Components - Jul 28, 2016Currently it is only partially possible to edit nested component subobjects, but not in a way that's consistent with how top-level component subobjects are edited (both Blueprints and IWCE). This is ...