As a follow up to the section 64 report sent on April 3, 2023, it has come to our attention that while the upgrade to version 19.4 software has been successful in the vast majority of cases, we have identified an issue when upgrading some units. The issue occurs when a large amount of data has been retained in the Team3 patient database, resulting in the unit resetting when the database is searched. Recall start date: May 5, 2023