Unreal Engine Issues

Mouse collision is offset when fullscreen at non-regular resolutions

The source of the issue is differences between viewport resolution and screen resolution. Cursor position is reported w.r.t. screen space, but we need to map that value to the viewport to correctly ...

Menus flash when being opened with application scale adjusted

When application scale is adjusted the menu bar menus will flash when they are opened. This issue is occurring in //UE5/Release-5.0-EarlyAccess Binary CL 16433597 This issue is NOT  occurring in // ...

Retainer box widget causes progress bars to render incorrectly

Retainer boxes are currently causing progress bars to render incorrectly. This looks to be related to [Link Removed] which is fallout from the changes to retainer widget transform calculation introd ...

Enabling Window Animations causes drop down menus to flicker and be displaced

I tested this with 3 Nvidia Drivers to see if I could find a driver that works properly. I tested the following Game Ready drivers Version 457.30, 461.40 and the latest, 461.72. The flicker occurred ...

Adding a widget to a grid panel inside the grid panel tick can cause an out-of-bounds error

This is caused by adding an item to a grid panel inside the grid panel iteration loop. The same operation to canvas panel goes well without any errors. The difference is that the array iteration in ...

Enabling window animations causes dropdown menus to flicker and become unselectable

Not a regression as I was able to repro this in 4.25.4 The bug doesn't occur every single time, you may need to try disabling/re-enabling the setting and/or clicking on the menu dropdowns a few tim ...

Changing the “show mouse cursor” variable of PlayerController with a mouse button input does not work the same as with a keyboard input

Using the mouse input to show the mouse cursor acts like an Alt+Tab. When clicking the mouse input again to no longer show the cursor, the camera controls stop at the edge of the screen. Reported i ...

Hard to change the size of the standalone window.

SWidget: Add support for ScrollBox in GlobalInvalidation mode

SScrollBar SScrollBarTrack SScrollBorder SScrollBox ...

RetainerBox may cause memory leak

Essentially, this memory leak should be counted in the UI section, but it is counted in the SceneRender section. This seems to be due to the behavior of MemStackAllocator and FixedSizeAllocator. Th ...