Hi creative-juice,
Here is a screen capture:
https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2024_Clips_DRS/20240406_FBX_to_2023.mp4
I hope that helps. I deleted the joints to showcase that they do not influence the mesh.
Both meshes are PLA animated and worked fine in 2023.
All the best