Unreal Engine Issues

Editor crashes upon PIE unless tick is disconnected and reconnected

Project crashes if user presses compile or PIE unless they first disconnect and reconnect event tick within blueprint component BP_BuildStage. Frequency: 4/4 CrashReporter: [Link Removed] ...

Importing low key frame animations with custom attribute curves have their keys offset affecting pose asset generation

When creating a pose asset based on an animation and curves with a low number of keyframes if you switch between the pose assets poses, the curves will not be correctly timed with the animation beca ...

Color changing through material parameter collection in a emissive material will not affect lightmap baking, unless recompile the material.

Landscape Grass Foliage Instances Culling Incorrectly

Foliage instances are culling incorrectly and seem to cull based off of the landscape components and/or entire foliage clusters. Regression? Yes, this issue does not occur in the 4.14.3 binary rele ...

Clicking the Closed Loop check box for a Blueprint SplineComponent crashes the Editor.

Clicking the Closed Loop option in a new Spline Component results in the Editor crashing. This only occurs in 4.8 Preview 1 (so far). 4.7.6 and Main appear to be working correctly. ...

Second UVs wiped when using Merge Actors Tool

The merge actor tool no longer saves additional UVs used for the merged mesh. This was not the case in 4.13, but in 4.14 and later this information is no longer present. Also worth noting is that i ...

Rearranging Slate Brushes causes crash

Rearranging the order of a Slate Brush array causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7305105), 4.24 (CL - 7285696) ...

Construction script in parent blueprint cannot call function in child blueprint

Construction script in parent blueprint cannot call function in child blueprint when the editor first loads. Once the parent BP is compiled it acts as expected. Regression? (Yes), issue (does not ...

Interchange Dialog view resets when changing values

This happens with just about any option in any tab. QA confirmed it also happens in the Material tab. Regression: Yes - does not occur in //UE5/Release-5.4 @ CL34507850 - Binary Repro Rate: 10/10 ...

Using Integer Bitmask crashes editor

attempting to open a project with Bitmask Flags set to true in a blueprint crashes editor. Note In attached project, the crash has been narrowed down to the filepath \Content\ThirdPersonBP\Bluepri ...