My PC freezes and crashes when trying to import an FBX file

I am trying to import an FBX file but the problem is that when importing it my pc freezes, I left it for a while to see if it loaded, it was about 10 minutes or so and then crashed

I took the image from google but I think that is the same error that came to me

I tried it another two times and the same thing happens I even put the UE4 in minimum graphics and lower the resolution of my pc to the minimum so that it consumes less performance and even so it keeps crashing I don’t know what to do it just happens with that file I can easily open it with blender Cinema4D Even with the windows 3d viewer, although I also understand that opening it with applications to edit 3d models is not the same as importing it to UE4, applications to edit 3d models give less problems but well, I would appreciate if someone could tell me the problem if I optimize the model or something else makes it crash if necessary I can upload the model to mediafire to pass it on and have them download it so they can see what is wrong. I appreciate any help.

What’s the polycount of the model? The RAM, vRAM (gpu) of your machine? Can you confirm you’re not trying to import 20m polygons with 4GB of RAM?

And what do you mean with 20m polygons?

I do not think it is a problem with my PC but I do not know how much I need at least I have 8GB of ram a graphics card GTX 1050TI 4GB vRAM Intel core i5 8th Gen

Sorry if it is something very obvious but I don’t have much knowledge about this modeling and those things I know the basics of what a High Poly / Low Poly model is but I don’t know exactly the amounts of polygons they have

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I want to add something else, the model is in PMX format, I converted it to FBX in blender, I don’t know if it has something to do with it, but at least in my case, on some occasions I transform a model from one format to another when importing it to UE4, I have an error but no I know if that I have something to do well I just wanted to add that

I meant 20 million polygons, as in a very complex mesh. While UE4 works with 8GB, you may be running into low memory issues - have you tried checking RAM utilisation as you work?

Is this the only model you’re having this problem with? Or all of them cause issues?

It is the only one that I cannot import, other models I import without problems, I tried to import it by deactivating the option to create skeleton and I created a static object and it was imported without problems but of course I need the skeleton too, I will leave you a link of the model that I try to import in case you need it, I uploaded it to mediafire:

(but I can import this without problems: Bob espoonja)

I imported it but it did put a considerable strain on my machine for a solid minute and gobbled down an extra 8GB of RAM (which was then released). It’s a fairly high quality asset:

Sadly, I know so little about working with character animations that I cannot tell whether what I’m experiencing is considered reasonable.

Perhaps someone more knowledgeable can chip in.

one more thing if your importance to ue4 means that my pc needs more power in Ram, vRam or something like that?

Ok anyway thank you very much

The first thing I’d do, would be to get an extra 8GB of RAM. Having 16GB in the system is pretty much a minimum for any kind of sensible work (32GB is nicer if you’re dealing with complex scenes). That’d immediately address the bottleneck.


Try getting an additional 2 sticks of whatever random access memory you’ve got there already. If you only have 2 memory slots on the motherboard, you could always sell the 2x4GB sticks and replace them with 2x8GB.

OK thank you very much

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Thanks