Unreal Engine exports wrong/incorrect framerate Animation Sequences to FBX!

[TylerB]

@SOLUTION

Only ever export your Animation Sequence assets like this:
Right Click on Animation Sequence -> Asset Actions -> Export

It will ensure the correct EMode value is set inside the FBX.

@IF IT'S STILL NOT WORKING

You’ll need to figure out if it’s Unreal Engine exporting incorrectly or your downstream software importing incorrectly. Here’s how to troubleshoot:

First, verify your Animation Sequence framerate is correct.

If it isn’t, check your Level Sequence framerate is set correctly before baking the animation to an Animation Sequence asset.

Next, make sure you’re exporting with the solution mentioned above:
Right Click on Animation Sequence -> Asset Actions -> Export

If it’s still not working, continue:

Download the Autodesk FBX Converter. You can find it here:
FBX Converter Archives | Autodesk Platform Services

Open the software and add an FBX Explorer window:

Load your FBX File:

In the Data Structure panel, navigate to:
FBX File > GlobalSettings > Properties70 > P 12 - TimeMode

Go to line 00090 in this Source File to find all of the available EMode enumerators:
fbxsdk/core/base/fbxtime.h Source File (autodesk.com)

Starting from 0, count down the list. For instance:

 0 = eDefaultMode
 1 = eFrames120
 2 = eFrames100
 6 = eFrames30
15 = eFrames96
etc.

If the EMode enum matches your Animation Sequence framerate, Unreal Engine has correctly exported your FBX framerate. The issue lies with how your downstream software is importing the FBX.

@FOR EXAMPLE

I want to export a 24 FPS animation.
Therefore, the TimeMode enum value in my FBX should read11.
This is because EMode enum 11 represents eFrames24 (when counting from 0).

If the EMode enum does not match your framerate, unfortunately you will need to continue with your own investigation. Hopefully my posts have given you a massive head start!

In my next post I’ll explain the actual issue causing this.