T 2719/19 is one of the decisions, the second being T 1513/17, having led to the referral and the decisions G 1/21 and G 2/22 of the EBA.
The application behind T 2719/19 is a divisional application from EP 1 755 674 leading to T 1513/17
In the present case, the ED refused the application for lack of N over D20 and D21 published in the priority interval.