Looker generating invalid nested with statements

[mmcilvride]

We have an explore that is used by many of our analysts. While analyzing this object in the Explore section, we had an analyst receive an error after putting together a certain combination of fields. The error seems to be cause by the SQL code that Looker is generating for the Explore:

WITH outer_ce_name AS (with inner_cte as (

The second with clause is invalid here. I'm not sure how to debug this. The Explore works with many combinations of this field, but it doesn't work with at least this one.

Has anyone else experienced this?