Schedule Sorting ArchiLab Package

I’m running into an issue with the Schedule Sorting Grouping node in the archi-lab package where it’s returning null and not actually doing any sorting/grouping. I’m sure this is probably user error, but I have not been able to find anything on the forums or the achi-lab website that’s pointing me in the right direction as to what I’m doing wrong.

I have a python script creating a Multi-Category schedule for each element that passes a logic test. From there I feed in some shared parameters and filters, but am stuck on getting those parameters correctly sorted and grouped.

Any help would be appreciated in getting this working!