[BUG] FBX Reimport only imports one object

ToddW · August 29, 2016, 10:10pm

Hi,

I’ve looked through the forums and answers hub and couldn’t find anything adressing this, so I thought I’d report this bug.

When I’m reimporting meshes from FBX files, only the first object in the file will be reimported. So if I have file with a hierarchy like this:

    A
       - B
       ....
    X

Only object A will be reimported, the rest is just gone from the asset. The only way I can fix the asset is by completely deleting it and then setting it up from scratch again.

I’m using Blender 2.77. I’ve reimported the files in Blender to see if the exporter screws up, but the imported data was fine.

Steps to produce the error:

Create two objects (e.g. cubes) in Blender
Export the to fbx by selecting them and then choosing “selected only” as export option
Drag and drop the file in the unreal content browser
Checkout that the import worked
Hit reimport

Hopefully this bug is reproducible.

My environment:

Blender 2.77
Unreal Editor Version: 4.12.5-3039270+++UE4+Release-4.12
Windows 10 Pro

Cheers,
Todd

anonymous_user_b9532c9a · August 30, 2016, 9:35pm

Hi ToddW,

Are you importing the actors all as one object or individual actors?

ToddW · September 2, 2016, 12:34pm

Hi ,

sorry for the long reply time! I’m importing them as one object.

anonymous_user_b9532c9a · September 2, 2016, 2:22pm

Instead of dragging to the content browser, try using the Import button. When you do this, you can optimize your import settings. Once you’ve imported, try re-importing, do you see the same error occur?

ToddW · September 3, 2016, 2:54pm

Have tried that but the reimport is still broken. These are the settings I use:

anonymous_user_b9532c9a · September 7, 2016, 7:08pm

Unfortunately, I have not been able to reproduce this on my end using the steps provided. Do you have a sample asset that this is occurring with? I’d be happy to take a look and see what may be going on.

ToddW · September 10, 2016, 12:03am

Again sorry for the slow reply! Yes I do! I get the error with this file:

anonymous_user_b9532c9a · September 12, 2016, 2:37pm

Hi ToddW,

After doing some digging, it appears the error you are experiencing is being caused by your export settings from Blender. I re-exported the file and it appeared without the error you are seeing. I’ve attached a . containing an image of my export settings from Blender along with an update FBX, please test this and see if it works correctly on your end.

link text

ToddW · September 12, 2016, 3:26pm

Hi ,

thanks for investigating! Your fbx works. However I’ve tried the export using your settings with my export and the reimport failed again. It has to do with the version of Blender. When naming my Blender version above I missed that I’m actually 2.77a not 2.77. I’ve just tried the export with the new 2.78rc and it works. So I guess the exporter of 2.77a is just broken.