Hi @colin
There are a few issues with your above code.
1. Misuse of the the_field function. This should be get_field.
2. The taxonomy field does have a drop-down (single select) mode
3. the param ‘cat’ expects an integer. If you selected checkbox for the field type, you will have an array of ids, not just one.
I would advise you to change the taxonomy field type to a single select, and then fix up the code from point 1.
Good luck
Cheers
E