Editable Text Box crashes game on iOS

UE - Platform - Mobile - Jan 12, 2015

Clicking on an Editable text box on a mobile device will causing the project to crash on the device. Tested on an iPad Air 2 (8.1) The crash does not occur on Android. Log files are from xcode ...

Axis changes when performing FBX import / export with "Force Front X Axis" enabled

UE - Editor - Content Pipeline - Import and Export - Jan 6, 2020

1. Import the attached test.FBX with "Force Front X Axis" enabled. 2. Export the imported skeletal mesh with "Force Front X Axis" enabled. (Test_export.FBX) 3. The axis does not match in test.FBX an ...

SceneCaptureComponent2D leaks a ton of memory in a Packaged Build

UE - Virtual Production - Mar 12, 2020

This was initially reported in VR but the leak happens in a non-VR setup and environment. GPU utilization jumps to 84% in 4.23.1 and 98%+ in 4.24.3, 4.25, and 4.26. Tested GPUs were GTX 980 and GTX ...

Clicking the Yellow Reset to Defaults Button on an exposed Value for struct Arrays always defaults to '0'

UE - Gameplay - Blueprint - Jan 8, 2015

When using the track builder plugin, the default settings for the track width starts at 1. However, when the yellow arrow is clicked to to restore the track back to default it sets it to zero instea ...

Scratch Pad outputting Audio Spectrum triggers a crash

UE - Niagara - Jun 14, 2023

This is a regression. Tested in //UE5/Release-5.1 CL23901901 The editor crashes after playing in editor when the level contains a niagara system with a scratch pad outputing audio spectrum. ...

Blueprint Implementable Events and Event dispatchers with the same name break the event dispatcher.

UE - Gameplay - Blueprint - Sep 22, 2015

Creating an event dispatcher and BlueprintImplementableEvent function with the same names causes a signature conflict inside the blueprint. The event dispatcher is then broken as it cannot be delet ...

Changing Texture compression settings breaks Materials with mismatch on Texture Sample Sampler Type

UE - Rendering Architecture - Materials - Aug 5, 2015

If you change a texture's compression settings, materials will show errors because of a mismatch in the Sampler Type of Texture Samples. This can be fixed by adjusting the Sampler Type and re-savin ...

4.6 Delegate error in Blueprints

UE - Gameplay - Blueprint - Dec 12, 2014

When looking into the bd_hud_scoring and bd_rules_maze blueprints in the users project (Provided below), there are nodes that are throwing errors. If you press compile, the errors go away and the co ...

Reliable multicast RPCs can be dropped

UE - Networking - Dec 23, 2015

As detailed in the linked UDN thread, if a server doesn't receive a network packet from a client in 1.5 seconds, it sets the client connection's ViewTarget to null. This will cause dropped reliable ...

Cannot Add Player with a second controller in Lyra

UE - Gameplay - Input - Feb 24, 2023

Controller 1 is able to navigate the menu as normal, but if you hit the "Start" button on Controller 1, it'll flash the Add Player UI element but won't connect as Player 2, and the output log will s ...