Unreal Engine Issues

UForceFeedbackEffect is only making slight vibration in iOS when value rises from 0 or effect is started.

UForceFeedback is expected to give vibration just like in the graph of the asset. But only in iOS it is not. It is expected to give continuous vibration following the forcefeedback asset, but only ...

Imported animation has one more frame than the original fbx

In UE4.12, imported animation has one more frame than the expected frame number. AS_AN_StepAnim_Test.fbx is 60 frame long animation(starts at frame 0, ends at frame 60). When imported to UE4.12, it ...

AssetManager ModifyCook does not correctly apply PrimaryAssetLabel references

Right now the AssetManager uses different logic in ModifyCook vs VerifyCanCook, specifically related to secondary assets like textures or maps that are indirectly loaded by soft object paths and are ...

Root motion "loop" not available to select in Blend Space

When creating a blend space within UE5, root motion options are greyed out and can NOT be selected, no matter if the animation has EnableRootMotion checked or not. I also made sure to try an animat ...

[Legacy][FBX] Animation curves are not added to the skeleton anymore

AnimToTexture vertex animation stutters on looping frame

The AnimToTexture plugin generates an animated texture that results in a stutter when the animation loops. This looks to be related to the code in UAnimToTextureBPLibrary::AnimationToTexture which ...

Adding entries to TMap in custom asset type not always reflected without restarting editor

If you adding entries to a TMap in a custom asset type in the content browser, after a certain number of entries the last entry fails to be found with the "find" function for TMaps in blueprints, ev ...

Copy-pasted user created umg not updating if the template was modified

When copying/pasting a user created Widget into another widget any changes made to the copy will change the main Widget without making any changes to the copy. ...

Materials are added to a Model that has been modified by Cube Grid

This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Changing materials before making a change to a model with cube grid causes that previous selected material to be added to the model ...

Inconsistent media texture new style output state across the engine

A simple search for `NewStyleOutput = true` will reveal the many instances where this flag is already forced on, including media plates and media bundles. This however means that we have incompatib ...