JQL search not recognizing special characters in Escalation Service

project = TEST AND issuetype = Task AND status in ("To Do", "In Progress") AND "Due Date&Time" <= now()

We show errors for field names with special characters in the escalation service JQL query input field whereas the same JQL run from standard Jira search validates and works without error

Workaround

If you want to get rid of the on-screen warning you can write it like this instead:

project = TEST AND issuetype = Task AND status in ("To Do", "In Progress") AND "Due Date\u0026Time" <= now()