Unreal Engine Issues

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 ...

Alpha Textures reimported via overwriting disappear from level

When you reimport a texture that has an alpha by Importing and then overwriting the previous texture, all versions of that texture in any material or in the level complete disappear until you compil ...

Crash reimporting Geometry Cache with Per X Frames

Crash occurs when the user reimports a geometry cache asset and changes the Sampling Type to Per X Frames. This seems to only occur if Frame Start is set to a value other than 0. ...

Shadow Color Not Updated After Light Build When a Texture is Changed and Reimported

Creating a material using a texture (say, blue) and then changing the source file on the texture and reimporting will not update the shadow color after building lighting. Making changes to the mate ...

Fbx Exporter: If 2 sections use the same material, one section will have a wrong material in the fbx.

FBX Import flips faces of mesh on Import for static meshes

User is reporting that this is happening with some, but not all meshes. I didn't see anything out of the ordinary when looking at the asset in 3Ds Max, and the asset will import correctly into 4.10. ...

Crash occurs when importing attached FBX with default import settings

While verifying a bug for 4.15 UE-39952 , I tried to repro in 4.14.2 and the editor crashed while attempting to import the attached FBX In 4.15, the Editor does NOT crash a window pops up stating t ...

Reimporting static mesh with static mesh editor window open will cause crash

When generating a collision box for a static mesh and reimporting the mesh with the static mesh editor window open will result in a crash. [Link Removed] ...

If Mesh is Reimported When Clothing Data is Applied Clothing Data Can No Longer be Edited

Clothing data can not be applied after the mesh that had clothing data already applied to it has been reimported Error message "Failed to bind clothing asset "nameofmesh"_0LOD1 is already mapped t ...

Fbx importer test only if there is one key to determine if the import contain animation

We should test two key instead since one key is a constant value. We have to make sure it did not break any current pipeline. But my guess is no. The question we should verify is, is users were put ...