In AWA 12.2.0 installation with a Postgres DB, a PromptSet uses Comboboxes which using a XML Vara as data source. XPath which is being used for filtering the data does not work.
Please kindly check these images for details:
1. The same settings for combo box in both AWA12.1 and 12.2
Automic Workload Automation Version 12.2.0
Your finding has been confirmed as a bug. The fixed version is: