Unreal Engine Issues

Nativized build will crash on load if a member variable in a nativized parent Blueprint class references a non-nativized child Blueprint class asset.

This occurs because there exists a circular reference between the nativized parent BP and the non-nativized child BP asset (which is a data-only Blueprint in this case). Current suggested workaroun ...

Iris - Non-replicated properties of FInstancedStruct reset after replication

This issue only occurs with Iris enabled. ...

Open Formats: Interchange Import Runtime - Interchange ImportAssetAsync runtime GLB import — materials, textures, tangents, and shaders non-functional in packaged builds (6 issues, UE 5.7.4)

Description* We are using Interchange's `UInterchangeManager::ImportAssetAsync()` to import GLB files at runtime in a packaged (Shipping) application. The orchestration layer (`ImportInternal` in `In ...

Android Improved Virtual Keyboard cannot receive non-English characters.

Currently, Improved virtual keyboard in Android only receives English characters and special characters. Need support for other languages. Investigate the bug and research what's needed to make IME ...

A use-after-free issue caused by GPUParticle

Crash freeing FClothingComboInfo array when importing LOD Level 8 of Skeletal Mesh

This does not occur in 4.17.2 at CL 3658906 ...

Iris - removal of fast array item not performed on client when server array contains a non-replicated item

It is possible to add items to a replicated fast array that are not intended to be replicated to the clients. For example, FGameplayAbilitySpecContainer has a custom ShouldWriteFastArrayItem impleme ...

Non-reflected header files not recognized by UHT

A user adds 3 .h files though Visual studio where the first contains a struct, the 2nd includes the 1st, the 3rd includes the 2nd and tries to make a variable of the struct declared in the 1st. The ...

Collisions aren't disabled by UPhysicsConstraintComponent in non-blocking streaming levels

When using a constraint to disable collision between the constrained bodies, collisions are not ignored if the constraint is part of a streamed in sub level that does not block on load. This also oc ...

Kerning Issues with Non-Default Fonts (Helvetica) in UMG

Licensee is reporting that when a font is scaled in a UMG, the smaller the font gets the more the Kerning between certain letters decreases to the point of overlap. This is not as obvious in a View ...