Unreal Engine Issues
Unreal Engine Issues
The Dynamic setting for the Nav Mesh generation causes a large dip in frame rates
UE - AI - Jul 14, 2015When using a fairly large level the Dynamic setting for the Nav mesh generation can cause large drops in frame rates. (Example: 120 fps when running Dynamic with Modifiers only to 42 fps with Dynami ...
Application fails on HTML5
UE - Platform - Mobile - Mar 6, 2015User is unable to launch his project onto HTML5 without any errors. The game doesn't work as an application, merely a background image. Works perfectly on Windows. ...
First Person Game Mode isn't set correctly for new default levels
Docs - Samples - May 26, 2015When creating a new default level in the first person template, the default game mode is set to 'pawn' rather than 'first person character'. ...
Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False
UE - Rendering Architecture - Aug 8, 2025The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...
Crash when moving a sprite imported as part of a spritesheet to another folder if the sprite names had invalid characters
UE - Editor - Content Pipeline - Content Browser - Oct 28, 2014Attempting to move any of the sprites created from this .json to another folder from within the Content Browser crashes the project. CRASHREPORT: 442758 ...
Visual glitches on Mac OS X using an Intel GPU while playing HW accelerated H264 video
UE - Graphics Features - Dec 2, 2014This looks to be a system driver bug, but logging here for transparency and future reference. It took me a long while to figure out that the key issue is a conflict during blit between UE4 and the H ...
OnDragDetected fires off with a single click for 3D widgets
UE - Editor - UI Systems - May 11, 2015When Using the On Drag Detected on a 3D widget, the drag function fires off on a single click (No dragging necessary) ...
No selection highlight in ES2
UE - Graphics Features - Dec 9, 2014No selection highlight in ES2. Expected to be able to see what user has selected. Reproduced on windows and mac. ...
Unable to unhide floating tabs
UE - Editor - UI Systems - Slate - Nov 5, 2014If you have a tab undocked so it is floating and right click it->hide tab, you will be unable to unhide it. I think the orange triangle is being blocked by the Unreal button. ...