obj Sequence import problem ae 2025 (and 2024, and 2025 beta)

Hello,
I need to edit and update an older project I created using the Plexus plugin. In AE 2024 and 2025.1 (the newest update as of now), I am no longer able to import an OBJ sequence (even with Plexus installed properly). It seems the import process reverts back to the native OBJ importer in AE, which only supports single OBJ files.

The strange thing is that if I open and convert an old CC 2017 AE project, it correctly displays and works with the imported OBJ sequence. However, I cannot change or replace it with a new sequence—doing so results in the same import error.

Is there a way to "force" AE to use the OBJ importer from the Plexus plugin rather than the native AE importer? (The Plexus plugin has been capable of importing OBJ sequences for more than seven years.)

Another (less ideal) solution would be to install and use AE 2023, but in Creative Cloud, I can only go back as far as 2024—even though my subscription started earlier.

Any thoughts or fixes? Thanks in advance.