Unreal Engine Issues

[Waveform Editor] - Waveform Editor has noticeable latency with larger files [investigate only for now]

I've noticed as I've been working with the Wave Form Editor, that it works fairly well for smaller files, but on longer assets there can be some pretty noticeable latency when adding and adjusting t ...

Blueprint breakpoints on EventEndPlay do not break execution in PIE

Blueprint breakpoints on EventEndPlay do not break execution of the PIE session before the session is destroyed. ...

Multiple water body blend modes produce unexpected results

3D Transformation Widget Unusable at Very Large Scales

When using a Transformation Widget in a Blueprint, the size of the widget seems to be some kind of product of size in screen space, object scale, and the transform widget scale that makes it much to ...

BP multi-level inheritance does not correctly inherit 'Static' mobility

User reported an issue of a mesh not being visible when a project has multi-level blueprint inheritance. After reproing, I believe the root cause is DefaultSceneRoot of the grandchild BP class not c ...

LandscapeExportWeightmapToRenderTarget not implemented

LandscapeExportWeightmapToRenderTarget is not implemented:bool ALandscapeProxy::LandscapeExportWeightmapToRenderTarget(UTextureRenderTarget2D* InRenderTarget, FName InLayerName) { returnfalse; } ...

STileView EventOnListItemObjectSet function is not called if the TileView items are cleared and then the same exact items are re-added

Result: In UMG_TileViewItem, EventOnListItemObjectSet function Trigger once Expected Results： EventOnListItemObjectSet function Trigger twice ...

Transform behavior of attachments is abnormal when scaling the parent actor along a single axis.

Here are gif screenshots of the different results in UE and Unity of the same operations. [Image Removed] [Image Removed] ...

New Viewport Resolution setting increases every time a new PIE window is launched

When closing a PIE viewport, we write the size back to the New Viewport Resolution setting in case the window was resized during play. However, we do not account for the window border, and write bac ...

Blueprint added component get reordered when editing properties on them

It's hard to say if this actually a UX issue specifically tied to component editing, or a broader issue with UX. Either way, we should triage the problem and work from there. ...