Send to Unreal - action.fcurves property error

[Jeremy-Neville]

• Addon: Send to Unreal
• Steps to Reproduce the Problem: In a Blender file with a Skeletal Mesh (armature) that has multiple actions, I clicked Pipeline > Export > Settings Dialogue, then set it to "Send to Disk" instead of Unreal, then adjusted to uncheck Export custom property fcurves under Export -> Animation, then "Push Assets"
• Error Log:

Python: Traceback (most recent call last):
  File "C:\Users\capti\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\send2ue\operators.py", line 73, in modal
    raise error
  File "C:\Users\capti\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\send2ue\operators.py", line 63, in modal
    function(*args, **kwargs)
  File "C:\Users\capti\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\send2ue\core\export.py", line 281, in export_animation
    export_custom_property_fcurves(action_name, properties)
  File "C:\Users\capti\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\send2ue\core\export.py", line 135, in export_custom_property_fcurves
    fcurve_data = utilities.get_custom_property_fcurve_data(action_name)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\capti\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\send2ue\core\utilities.py", line 218, in get_custom_property_fcurve_data
    for fcurve in action.fcurves:
                  ^^^^^^^^^^^^^^
AttributeError: 'Action' object has no attribute 'fcurves'

• OS: Windows 11
• Addon Version: i.e. Send to Unreal 2.6.7
• Blender Version: i.e. Blender 5.0.0
• Unreal Version: N/A

I managed to work around this by removing functions/references to fcurves in my local export.py file, but if someone does need to export custom property fcurves and/or doesn't want to modify the addon this'll block exporting animated meshes. I do not get this error on a file with no animations.

For added context, this did not used to happen on Blender 4.x.x + Send to Unreal 2.6.5, I'm not sure which end upgrading broke it.

[JoshQuake]

Thanks for the report! Looks like fcurves were moved in blender 5.0. I will have a fix later today.

[JoshQuake]

Sorry for lack of update, something has come up and I haven't had the time to get into it fully. I will hopefully have time next week. But essentially the change will require being able to pass the rig, get the action slot, and then the channelbag from those which is now what holds the fcurves...

What exists now for < 5.0 doesn't require passing the armature along to get the fcurves out, just the action itself.

[darktimes]

Any updates on this issue? Can't export animations in blender 5.0.1 and latest unreal, same error