Hello,
In UE 5.8.2 it seems like FBX Animation Attributes do not get imported at all when using the Interchange importer to import animations from FBX files.
For my testcase I have a simple skinned mesh set up in Maya that has three custom attributes of type float, integer and string added to one of the skinned bones:
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In the UE project settings the names of the three custom attributes have been defined in “Bone Animation Attribute names”:
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When importing the animation via Interchange, two of the custom attributes get imported as animation curves only (float and integer):
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When importing the same animation via the legacy FBX importer (evoked using the Interchange.FeatureFlags.Import.FBX False command), using similar import settings, the attributes get added properly:
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Is this a bug or am I missing some additional step that is needed for importing Animation Attributes via Interchange?
The documentation page suggests this process to be straight forward (and still supported with 5.8) though it does still show an example screenshot with settings for the old FBX importer window, in case this is relevant: Animation Attributes
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