ML Deformer Maya Plugin doesn't export Alembic file

After I train my MetaHuman’s arms in Maya the Alembic file doesn’t export out. I only get the FBX on export. I have tried reducing the amount of frames to make a smaller trained file and have plenty of drive space. Has anyone else tried using the ML Deformer on a Metahuman yet with success?

Is there anything in Maya’s log that shows an error?
Normally it should write the abc file when you enable the checkbox next to it in the Maya plugin’s UI, where you pick the abc file to write to.
Also please make sure that folder can be written to.
If all fails, you should be able to also manually save out the abc file. It basically just calls a command to save the abc in Maya.