CustomPress Shortcode Not Displaying Value

For some reason, CustomPress has decided it would rather not display custom field values when using the shortcode. Here is the code I'm using:
<p><strong>[ct id="ct_Price_Rang_selectbox_e52f" property="title"]</strong>: [ct id="ct_Price_Rang_selectbox_e52f" property="value"]</p>

Title and description both work, just value is giving me trouble.