Editors crashs on FBX Import

Hello guys,
i got a FBX here that seems to crash editor when trying to import it. This is a character modell we have been using in Unity and i’m unable to import it to Unreal4. editor will show the “Importing” window up to 75% - then it keeps allocating memory which i can see in task manager until it finally runs out of memory. CPU is also stuck at 25%. Not sure what’s going on here so i uploaded FBX at

https://.co.nz/#!VQBBmaAD!8WFZSW5Z8hajKym8ryb8alI7-xttBO0OTd4OPZKbmYY

for reproduction.

Hi Burnz,

Please find log from your project after this crash occurs and /attach it here. You can find it in your project’s Saved\Logs folder. Thanks!

Hi -

In addition to your log files and Machine ID (can be found in Crash Reporter Window just before you submit crash to us), can you also check link to your FBX as I am unable to download it to test this issue internally.

Thank You

Eric Ketchum

Hi guys,
there is no crash report unfortunatly because editor keeps allocating memory and CPU stalls at 25%. If i wait it’ll continue allocating until it whole system runs out of memory and becomes unstable (My machine here has 12 GB RAM which should be enough to import a character fbx).

Here is an alternative link to fbx :

Just try to import FBX under Unreal 4.8.1, make sure you have taskmgr open.

Hi Burnz -

I received your test character and was able to import skeletal mesh without any issue. Some things I would look into and let me know results:

Look into Windows Event Viewer and see if an Error or Critical message is displayed at time you are importing skeletal mesh. If so, is UE4-Editior.exe listed as instigator? If not, it could be an issue with drivers or Redistributables that need to be updated.

As a general note about using Genesis or other DAZ3D models in UE4, they will import with errors in mesh skinning unless they are first imported into a Modeling Program like Max, or Maya and resaved in a corrected FBX format.

Verify your UE4 engine install or recompile engine if you are building from GitHub.

Thank You

Eric Ketchum

Hi Eric,
i changed my pipeline to work around problem. Too bad you cannot replicate issue, was hoping i could help out finding a bug. I checked EventViewer and there were no entries giving hints about issue.

Since i installed 4.7.6 i was testing file as well and result is same. editor keeps allocating private memory until all system memory is depleted - remains a mystery to me why. It has to be something inside fbx since importing/exporting through 3dsmax appears to solve problem.