There is a slight upward trending in the reportable complaint in 2019 and 2021 as compared to the past two years (2017 to 2018) and 2020 mainly due to the same three issues that were identified in multiple reports from multiple users: 1) S7-3t TEE probe was not displaying temperature reading, 2) images of one patient were mixed up with those of another patient; none of these events were associated with patient injury, and 3) swivel mechanism of the control panel assembly was not locked properly.