Unreal Engine Issues
Unreal Engine Issues
Interaction between sublevels and LevelSequences can break actors attachments hierarchy of the sublevel.
UE - World Creation - Worldbuilding Tools - Aug 6, 2025Having a LevelSequence opened and unhiding a sublevel can break the attachment hierarchy of the actors that are inside the sublevel. This also affects to the sublevel asset itself. ...
Assertion failed: UnscaledViewRect.Width() > 0
Tools - May 23, 2018Crash when using new FCanvasDrawer Licencee notes that crash does not occur if "new FCanvasDrawer" is commented out. ...
Linux Vulkan editor crashes OOM on older graphics cards
UE - Graphics Features - Oct 19, 2018Vulkan editor is very crashy on older cards due to memory pressure. I have to switch to OpenGL to work on the unrelated bugs. I'm attaching the details of the particular failure I had (see VulkanMe ...
Replay System throws an Ensure during demoplay when calling it in a different Level
UE - Networking - Jul 10, 2019Replay System throws an Ensure during demoplay when calling it in a different Level. The error is thrown at Source\Runtime\Engine\Private\RepLayout.cpp]. It does not prevent the Replay from being pl ...
ARM64 projects crash on device with Signal 11 with GooglePlay plugin enabled
UE - Platform - Mobile - Sep 20, 2016When launching ASTC ARM64 packaged project onto S7, it'll crash with Signal 11. It seems very similar to [Link Removed]. ...
GamePad input commands for multiplayer all send to player 1
UE - Gameplay - Input - Nov 20, 2014When setup for multiplayer, all players are able to move around and control the camera with the analog sticks but button presses of all controllers only affect player 1. ...
Animations imported with Skeletal Mesh are not marked as dirty and don't get saved
UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016Animations imported with Skeletal Mesh are not marked as dirty and don't get saved. They disappear when the editor is restarted. This does not occur in 4.11 or 4.13. ...
StartCameraFade not fading camera
UE - Platform - Mobile - Aug 3, 2016This started happening recently in 4.13 integrations. StartCameraFade node no longer has any effect. Fading no longer works in new VR Template. ...
UnrealMatch3 backgrounds not scaling correctly
Docs - Samples - Aug 4, 2016The backgrounds for the interactive buttons have seemingly scaled down in the 4.13 engine version. The button icon themselves seem to have been unaffected. Screenshot comparisons included ...
MassInKg override resets to 0
UE - Simulation - Physics - Aug 23, 2016In the details for a Static Mesh Actor, MassInKg resets to 0 when the user tries to set it to something else. I couldn't reproduce this issue in 4.13. ...