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
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?
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.
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.
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.