Hello John,
The number of layouts in the Bin (Trash) is a bug.
I will be reporting this to our developers.
On the other hand, this does not contribute to your layout issue, where in the CS Form Filtering is not working.I have a hunch that this is because of the layout assignment. Be advised that when there are more than 1 assigned layout to a taxonomy Doc Year or Doc Holder, this can create a conflict. I highly recommend that you unassign the several layouts that you currently have and work on your custom archive layout one at a time.
Hope this makes sense.