Hello Sibrant,
We have had this same issue. As of now we have not come up with a solution, but a workaround exists:
By running the python script crop-type-wrapper.py manually as Philippe instructed here we were able to produce and access L4A results successfully. Only needed to manually join them to the declaration data set.
As this is the case, we suspect the issue lies with the final exporting step of the L4A processor.
Best regards,
Sakari