Unreal Engine Issues

Special modifier key inputs do not register in editor if the key press occurs instantly

Special function key presses and hotkey shortcuts do not register in the editor if they fire key presses instantaneously (0ms). In particular, TypeMatrix keyboards reproduce this error using keyboar ...

Crash when adding sphere reflection capture to a scene

An occasional crash occurs when adding a sphere reflection capture to the scene from the place mode panel. This issue has a low repro, but has been seen a couple times. Repro rate seems to be around ...

Lighting channels on static mesh doesn't change correctly at runtime

If call SetLightingChannels in blueprint to set a static mesh's lighting channels at runtime, the mesh in the viewport seems can't update to the new lighting channel setting.  A weird thing is, if ...

LastRenderTime does not update when Occlusion Culling is disabled

When disabling Occlusion Culling, Components will not have their Last Render Time updated. ...

Static Mesh Component Scale Displays Incorrect Values on Static Meshes as Scene Roots

Static mesh components incorrectly display scale information through the Detail's Pane and Blueprint editor window until simulation is pressed. This occurs if the static mesh component is moved to t ...

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

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. ...