Hello - thanks for reaching out. We'd like to take a look and address the issue you're encountering. If you could provide the steps you're taking to replicate the issue, it will be helpful in our troubleshooting. Please provide screenshots as well if possible as they will be helpful in identifying the issue.

Thanks!

1) Go to Staff Directory tab from the Dashboard
2) Click on "Add new department/type"
3) The edit attribute page is displayed under Dashboard, Pages & Themes, Attributes
4) Scroll down to the bottom of the page
5) add a new Attribute that includes & within the name
6) Press the save button
7) Go back to Staff Directory tab from the Dashboard
8) Create a new item in the staff directory and associate it with the new Department/type that you just created which has the & in the name.
9) Navigate to the public view of the staff directory
10) Edit the block and tick the box that says: Include Filter For Department/type: Yes
11) Save the page and refresh the browser window for site directory.
12) Use the dropdown filter to select the department/type that has the & in the name.
13) Nothing will be displayed, yet you can see the listing when you clear the filter and it's associated with that department/type.

Looks like it's related to the filtering function on the block.

Thanks