Unreal Engine Issues

Transform does not update after first time for Instance Static mesh in Blueprint Editor

In 4.15 When you update the transform of an instance static mesh a second time the editor does not update the location, to get the update to display correctly you must close and re-open the blueprin ...

Sequencer Render: Animation not updating for a moment on camera cut

When rendering from sequencer to an image sequence, character animation stops for 2 frames after a camera cut. This hitch does not occur when playing the sequence in PIE I've attached some sample d ...

MoviePipeline: Field of View doesn't match viewport when using the Squeeze Factor property

ScreenshotCapturedDelegate is never called in HDR

In UGameViewportClient::ProcessScreenShots, when bHdrEnabled is true, the Bitmap array is never filled (the capture code uses BitmapHDR), so ScreenshotCapturedDelegate is never called for any custom ...

Auto Convex Collision will cause crash when using significantly small meshes

A hard crash can happen when applying auto convex collision to a complex mesh that is below a certain build scale or screen size. The meshes that cause this have higher poly counts and increasing th ...

Background blur missing with HDR CompositeMode 1

UPD: According to Affects Version field, issue reproduces in 4.26, Regression for 4.27 - No. ...

uv scale of materials on hollow BSP does not persist after building geometry

When creating a level with BSPs UV settings that are applied do not persist after building. Regression: Yes Working: CL-2386410 Broken: CL-2467323 ...

Variables replaced with -1 after jumbling in details pane when one actor is selected and another blueprint compiled

Variables replaced with -1 after jumbling in details pane when one actor is selected and another blueprint compiled. De-selecting Actor_1 sets variables back to correct value when selected again. ...

Content Examples: Example 1.6 broken collision - Cloth Map

Example 1.6 on Cloth Map seems broken. Both Assets clip when twisting when they're supposed to be examples of Self Collision. Regression: Yes Works in 4.15 ...

Use mouse for touch enables gesture action on button which makes the button to lost focus to that the button fires onreleased event

When Use mouse for touch is enabled, the button fires onreleased event. Here is what I investigated. Use mouse for touch enables gesture action in the button that leads to LongPress gesture fires ...