fbx are not preview correctly

[hat27]

What happened?
fbx are not preview correctly.
When fbx file saved from mobu, nothing previewed. Fbx saved from maya, animation is broken.
Do you have an idea?

List all the operating systems versions where this is happening
windows 11 Home

Operation

1. open "mia_fk_runstopturn.fbx"in mobu. This file is exists in mobu "Asset Browser" tab.
2. plot animation to skeleton
3. delete HIK(clean up)
4. save ※1
5. import fbx to maya
6. save ※2

Test version
2017, 2018, 2019, 2020, 2022, 2023 mobu(※1) maya(※2)

[takavfx]

I think I need to dig in the fbx file which causes bugs... but as far as I can tell you, Motion Builder is not verified option to export FBX files.

And... I feel supporting FBX is harsh to keep developing (I'm working on remaking this tool currently) and thinking to get rid of the support for FBX for some very first term.

So now, glTF (binary) is a better option.